data/claims/klax-history.yamlKlax (history and reception)
Game: Klax.
Klax began as an Atari Games arcade game. Computer Entertainer's January 1990 issue, reporting on the Winter Consumer Electronics Show, said the coin-op "just hit the arcades earlier this month". A 2005 Japanese reference list of arcade games gives February 1990 for Atari Games' Klax in its overseas part, and March 1990 for Klax from Atari Games and Namco in its Japanese part; Hudson Soft's Famicom manual says Atari Games presented Klax in the arcades in spring 1990. klax-history/arcade-original
p. 19, Tengen at the Winter CESfamiliar with KLAX yet, because the coin¬Our translation(You may not be) familiar with KLAX yet, because the coin(-op version just hit the arcades earlier this month).Computer Entertainer, vol. 8, no. 10 (January 1990) · p. 19, Tengen at the Winter CESop version just hit the arcades earlier thisアーケードTVゲームリスト 国内・海外編 (1971-2005) · 海外編 (overseas), index of titles, PDF p. 158 (OCR text lines 43760-43764) — read on the page image (PDF p. 158); the overseas chronological list (PDF p. 113) also shows "90/02 Klax", between Bad Lands (90/01) and Hydra (90/06)Klax Atari Games 90/02アーケードTVゲームリスト 国内・海外編 (1971-2005) · 国内編 (Japan), index of titles, PDF p. 77 (OCR text lines 16995-16997) — read on the page image (PDF p. 77). The Japanese chronological list (PDF p. 54, OCR text lines 10489-10491) has "(86) 90/03 クラックス [Atari Games]", also read on the page imageクラックス アタリゲームズ/ナムコ 90/03Our translationKlax, Atari Games/Namco, 90/03 (March 1990)Klax (Famicom) instruction manual, Hudson Soft · image 4, WHAT IS KLAX — the OCR spaces out the Japanese and reads ハ for は; the sentence was read on the page image (image 4)KLAX は Atari Games 社 が 1990 年 春 に アー ケー ド で 発表 し た ゲー ムOur translationKLAX is a game that Atari Games presented in the arcades in spring 1990Checked by a second AI model, 2026-11-06.The sources do not agree to the month, and none of them is an arcade flyer or an operator's manual: Computer Entertainer's "this month" is the month of its January 1990 issue, and the reference list gives year and month only. No arcade source has been read for the coin-op's staff or hardware.
Cited by: Klax
VideoGames & Computer Entertainment's July 1990 issue printed RePlay magazine's chart of the top coin-ops of March 1990, from an earnings-opinion poll of operators, with "Klax by Atari" second among the best new upright games, after Namco's Winning Run. klax-history/arcade-chart
image 19, Top Coin-Ops of March 1990Replay magazine, based onOur translation(Figures courtesy of) Replay magazine, based on (an earnings-opinion poll of operators)VideoGames & Computer Entertainment, July 1990 · image 22, Top Coin-Ops of March 1990, Best New Uprights2. Klax by AtariVideoGames & Computer Entertainment, July 1990 · image 22, Top Coin-Ops of March 1990, Best New Uprights1. Winning Run byChecked by a second AI model, 2026-11-06.The chart starts on image 19 ("Top Coin-Ops of March 1990", "Best Upright Videos") and its Best New Uprights list runs on at the head of image 22 in the OCR; the page images haven't been checked for the layout.
Cited by: Klax
Tengen's NES manual credits the original game design to Mark Stephen Pierce and Dave S. Akers. For the NES version it credits the programming to Dave O'Riva, the graphics to Greg Williams, and the music to LX Rudis and Dave O'Riva. klax-history/design-credits
image 3, CreditsOriginal Game Design.Klax (NES) instruction booklet, Tengen · image 3, CreditsMark Stephen Pierce and Dave S. AkersKlax (NES) instruction booklet, Tengen · image 3, Credits — the second name line, against "Programming.".Dave O'RivaKlax (NES) instruction booklet, Tengen · image 3, Credits — the third name line, against "Graphics.".Greg WilliamsKlax (NES) instruction booklet, Tengen · image 3, Credits — the fourth name line, against "Music.".LX Rudis and Dave O'RivaChecked by a second AI model, 2026-11-06.The OCR gives the credit labels and the names as two columns; the pairing was read on the page image (image 3), which also credits Mike Alexander under Special Thanks and Louis Saekow Design for the manual and packaging artwork.
Cited by: Klax
At the January 1990 Winter Consumer Electronics Show, Tengen announced but did not show an NES version of Klax, and also announced planned Genesis versions of Paperboy, RoadBlasters and Klax, according to Computer Entertainer. klax-history/nes-announced
p. 21, Tengen (NES software at CES)coin-op, KLAX. Tengen's games are independently produced and neither sponsored norOur translation(Also announced but not shown was an NES version of the just-released) coin-op, KLAX.Computer Entertainer, vol. 8, no. 10 (January 1990) · p. 19, Tengen at the Winter CESGenesis versions of PAPERBOY, ROADBLASTERS and KLAX. You may not beOur translation(Tengen also announced, but did not show, planned) Genesis versions of PAPERBOY, ROADBLASTERS and KLAX.Checked by a second AI model, 2026-11-06.Cited by: Klax
Tengen published the NES cartridge without Nintendo's license. Its manual prints "KLAX: TM Atari Games; licensed to Tengen, Inc. ©1990 Tengen, Inc" and refers players to Tengen's game counselors; Tengen's advertisement in Electronic Gaming Monthly's August 1990 issue says Tengen's products are not designed, manufactured, sponsored or endorsed by Nintendo, and that Klax was "Appearing first on the NES", to follow on the Genesis, the TurboGrafx and home computers. Nintendo of America's list of NES games has no entry for Klax. klax-history/nes-unlicensed
image 2, inside coverKLAX: TM Atari Games; licensed to Tengen, Inc. ©1990 Tengen, IncKlax (NES) instruction booklet, Tengen · image 2, inside coverTengen's games, please call a Tengen game counselor at (408) 433-3999 Monday throughElectronic Gaming Monthly, issue 13 (August 1990) · image 3, Tengen advertisementAppearing first on the NESfOur translationAppearing first on the NES®Electronic Gaming Monthly, issue 13 (August 1990) · image 3, Tengen advertisementKLAX will soon beOur translationKLAX will soon be (available on Genesis, TurboGrafx and home computers).Electronic Gaming Monthly, issue 13 (August 1990) · image 3, Tengen advertisementfactured, sponsored or endorsed by NintendoOur translation(Tengen's products are designed and manufactured in USA by Tengen. They are not designed, manu)factured, sponsored or endorsed by Nintendo.NES Games (Nintendo of America release list) · PDF p. 7, K entries — the list runs Kiwi Kraze, KlashBall, Knight Rider, with no Klax between themKlashBallChecked by a second AI model, 2026-11-06.Nintendo's list is a later company document of the games released under its license; an absence from it is consistent with an unlicensed cartridge but doesn't date anything.
Cited by: Klax
The NES version was out by the summer of 1990: Electronic Gaming Monthly's Review Crew reviewed it in the August 1990 issue, whose review header gives its release as July, and Tengen advertised it in the same issue. Chris Scullion's NES Encyclopedia (2019) gives 1990, and Tengen as publisher and developer. No source read gives a day of release. klax-history/nes-release
image 14, Review CrewKlax, adapted from the recentElectronic Gaming Monthly, issue 13 (August 1990) · image 3, Tengen advertisementAppearing first on the NESfOur translationAppearing first on the NES®The NES Encyclopedia: Every Game Released for the Nintendo Entertainment System · Klax entry (OCR text lines 44120-44130)KLAX Year 1990 Publisher Tengen Developer TengenElectronic Gaming Monthly, issue 13 (August 1990) · p. 14 (image 14), Review Crew, Klax header, read on the page image — the header reads "Nintendo - Tengen / Klax / Type: Puzzle Release: July / Levels: 50 Difficulty: Avg."; it isn't in the OCRRelease: JulyChecked by a second AI model, 2026-11-06.Scullion's encyclopedia is a retrospective secondary source that names no source for its years.
Cited by: Klax
Electronic Gaming Monthly's Review Crew reviewed the NES version in its August 1990 issue: Steve gave it 7, Ed 6, Martin 7 and Sushi-X 7, out of 10. The header lists a Tengen puzzle game with 50 levels, and the description calls it an adaptation of "the recent Atari Games coin-op hit", a puzzle game "somewhat resembling a cross between Tetris and Columns". Steve called it "Tengen's revenge against Nintendo", with graphics and sound "remarkably close to the arcade, but more diversity in play would be nice". Ed found it different enough from Tetris to have its own identity. Martin called it "A good arcade translation of Klax for NES" that loses its appeal after 20 rounds, but "A good game!". Sushi-X called it "one great game idea which has gone astray", without "the 'progressive' appeal that you get with Tetris." klax-history/nes-egm-review
Value: review Electronic Gaming Monthly · of 10 · reviewers 7, 6, 7, 7
MagazineElectronic Gaming Monthly, issue 13 (August 1990) ·image 14, Review Crew, KlaxAtari Games coin-op hit, is a puzzleElectronic Gaming Monthly, issue 13 (August 1990) · image 14, Review Crew, Klaxbetween Tetris and Columns.Our translation(game somewhat resembling a cross) between Tetris and Columns.Electronic Gaming Monthly, issue 13 (August 1990) · image 14, Review Crew, KlaxThis is Tengen's revenge againstElectronic Gaming Monthly, issue 13 (August 1990) · image 14, Review Crew, Klaxmarkably close to the arcade, butOur translation(graphics and sound are re)markably close to the arcade, but (more diversity in play would be nice).Electronic Gaming Monthly, issue 13 (August 1990) · image 14, Review Crew, KlaxA good arcade translation of Klax forElectronic Gaming Monthly, issue 13 (August 1990) · image 14, Review Crew, Klaxup. A good game!Electronic Gaming Monthly, issue 13 (August 1990) · image 14, Review Crew, KlaxThis is one great game idea whichElectronic Gaming Monthly, issue 13 (August 1990) · image 14, Review Crew, Klaxappeal that you get with Tetris.Our translation(It just doesn't have the 'progressive') appeal that you get with Tetris.Electronic Gaming Monthly, issue 13 (August 1990) · p. 14 (image 14), Review Crew, Klax, read on the page image — the reviewer's tag at the left and the red mark over the first comment ("This is Tengen's revenge against Nintendo"); not in the OCRSTEVE 7Electronic Gaming Monthly, issue 13 (August 1990) · p. 14 (image 14), Review Crew, Klax, read on the page image — over the second comment, "I like puzzle games and Klax is one which is just different enough from Tetris to give it its own identity"; the OCR keeps its first line onlyED 6Electronic Gaming Monthly, issue 13 (August 1990) · p. 14 (image 14), Review Crew, KlaxI like puzzle games and Klax is oneElectronic Gaming Monthly, issue 13 (August 1990) · p. 14 (image 14), Review Crew, Klax, read on the page image — over the third comment ("A good arcade translation of Klax for NES ... after 20 rounds it seems all the same and loses its appeal"); not in the OCRMARTIN 7Electronic Gaming Monthly, issue 13 (August 1990) · p. 14 (image 14), Review Crew, Klax, read on the page image — over the fourth comment ("This is one great game idea which has gone astray!"); not in the OCRSUSHI-X 7Checked by a second AI model, 2026-11-06.The OCR runs the Klax and Low G Man columns together and loses parts of several comments under the screenshots; the reviewers' tags, the marks, the header and the full comments were read on the page image (image 14, printed p. 14). The header's 50 levels differ from the 100 stages Scullion's encyclopedia gives the NES game.
Cited by: Klax
In the NES manual, Klax is a "tic-tac-tile game": colored tiles tumble down a conveyor belt and the player catches them and arranges them in same-colored lines. A Klax is three or more tiles of the same color in a row, vertical, horizontal or diagonal. The player's paddle moves between five positions at the foot of the conveyor and holds up to five tiles; the A Button flips the top tile into the bin below, Up on the control pad throws the top tile halfway back up the conveyor, and Down speeds the tiles up. There are up to eight colors plus a flashing wild tile that stands for any color. A tile the paddle misses drops and adds to the drop meter, and the game ends when the meter is full. klax-history/nes-premise
image 2, Object of the GameThis hot new tic-tac-tile game has youKlax (NES) instruction booklet, Tengen · image 8, p. 5, How to PlayA KLAX is three or more tiles of the same color in a rowKlax (NES) instruction booklet, Tengen · image 8, p. 5, How to Playput tiles in the "bin". Your paddle can move to one of 5 positions on the screen:Klax (NES) instruction booklet, Tengen · image 8, p. 5, How to PlayPress the A Button to flip the top tile on yourKlax (NES) instruction booklet, Tengen · image 8, p. 5, How to Playthe Control Pad to throw the top tile on yourOur translation(You can press UP on) the Control Pad to throw the top tile on your (paddle half way up the conveyor).Klax (NES) instruction booklet, Tengen · image 8, p. 5, How to Playaccelerate the tiles on the conveyor. Use thisOur translation(you can press DOWN on the control pad to) accelerate the tiles on the conveyor.Klax (NES) instruction booklet, Tengen · image 8, p. 5, How to PlayThere are up to 8 total colors inKlax (NES) instruction booklet, Tengen · image 8, p. 5, How to Playcan hold up to 5 tiles.Our translation(The paddle) can hold up to 5 tiles.Klax (NES) instruction booklet, Tengen · image 9, p. 6, Drop meteryour drop meter will increase. You have a limited number of drops beforeKlax (NES) instruction booklet, Tengen · image 9, p. 6, Drop meterWhen all the lights are ON, your game is over!Revised after a check by a second AI model, 2026-11-06: quotes the drop meter's "When all the lights are ON, your game is over!"The diagram on p. 5 labels the vertical, horizontal and diagonal lines; the OCR keeps only "Diagonal" and "Horizontal". The wild tile is "a flashing block that will substitute for any color" (p. 5).
Cited by: Klax
The NES manual describes five types of wave, each set at its start: get a number of Klaxes, a number of diagonal Klaxes, a number of horizontal Klaxes, a number of points, or catch a number of tiles. A warp screen after the start lets the player choose the wave to begin at, and a second player can press Start there to play at the same time. The options let the player turn the drop meter off for wave 1, choose easy, medium or hard, turn ramping on or off, and pick sound effects or music; a Stuff menu holds Blob Ball, which the manual says "has no relationship whatsoever to the rest of KLAX". klax-history/nes-waves
image 9, p. 6, How to Complete a WaveThere are 5 different types of Waves in KLAX.Klax (NES) instruction booklet, Tengen · images 9-10, pp. 6-7, How to Complete a WaveOnly Diagonal KLAXs count towards finishing theKlax (NES) instruction booklet, Tengen · images 9-10, pp. 6-7, How to Complete a WaveThat many tiles must be caught on the paddle toKlax (NES) instruction booklet, Tengen · images 9-10, pp. 6-7, How to Complete a WaveYou need to get this many points to finish the Wave.Klax (NES) instruction booklet, Tengen · images 9-10, pp. 6-7, How to Complete a WaveOnly Horizontal KLAXs count towards finishing theKlax (NES) instruction booklet, Tengen · image 4, p. 1, Warp ScreenAnother player can press START now for simultaneous play.Klax (NES) instruction booklet, Tengen · image 6, p. 3, Options MenuDIFFICULTY - Choose easy, medium or hard. This setting changes the rate at which the blocks advanceKlax (NES) instruction booklet, Tengen · image 6, p. 3, Options MenuRAMPING - If ramping is turned ON, the game will get more and more difficult the longer you play.Klax (NES) instruction booklet, Tengen · image 6, p. 3, Blob Ballthe rest of KLAX, it's just sort of there...Our translation(Blob Ball has no relationship whatsoever to) the rest of KLAX, it's just sort of there...Klax (NES) instruction booklet, Tengen · image 9, p. 6, How to Complete a WaveGet the number of KLAXs specified.Klax (NES) instruction booklet, Tengen · image 4, p. 1, Warp ScreenMove the hand to the wave you want to start at, then pressKlax (NES) instruction booklet, Tengen · image 6, p. 3, Options Menuyou can turn the drop meter off for WAVE 1.Klax (NES) instruction booklet, Tengen · image 6, p. 3, Options MenuNote that you cannot have both sound effects andOur translationNote that you cannot have both sound effects and (music at the same time.)Klax (NES) instruction booklet, Tengen · image 6, p. 3, Blob BallLook on the STUFF MENU and you'll see it.Revised after a check by a second AI model, 2026-11-06: Quotes the Klax wave, warp screen, drop meter, sound-or-music and Stuff menu lines.The five wave types are the manual's; it says the numbers depend on the current wave. Scullion's NES Encyclopedia gives the NES game 100 stages (nes-release's source, the Klax entry), which the manual doesn't state.
Cited by: Klax
Hudson Soft released Klax on the Famicom in Japan on 14 December 1990, according to a retrospective Famicom catalog. klax-history/famicom-release
PDF p. 127, ファミコンソフト完全目録, 1990, no. 732 — the OCR reads I and l for the title's 『 and 』7321990/12/14 IKLAXl ハドソンOur translation732, 1990/12/14, KLAX, HudsonChecked by a second AI model, 2026-11-06.The catalog is an unsigned retrospective mook that names no source for its dates. No Famicom magazine of December 1990 has been read for the date.
Cited by: Klax
The Famicom cartridge, code HFC-V6, carries Hudson Soft's copyright of 1990 with Tengen's and Atari Games'. Its manual describes ten kinds of tile, five kinds of task set in each wave, and simultaneous play for two. klax-history/famicom-cartridge
image 1, cover — the OCR reads 6 for the © before 1990; the next line is "⑥Atari Games Corp. ⑥Tengen Ltd."HUDSON SOFT _ 〇 Tengen Inc.Our translation(©)1990 HUDSON SOFT, © Tengen Inc.Klax (Famicom) instruction manual, Hudson Soft · image 1, coverHFCV6Our translationHFC-V6Klax (Famicom) instruction manual, Hudson Soft · image 4, WHAT IS KLAXKLAX と は 10 種 類 のOur translationKLAX (is a game in which) ten kinds of (tile are stacked up)Klax (Famicom) instruction manual, Hudson Soft · image 4, WHAT IS KLAX各 面 で 出さ れる 5 種類 の 問題Our translationthe five kinds of problem (task) set in each stageKlax (Famicom) instruction manual, Hudson Soft · image 4, WHAT IS KLAX2 人 同時 プレ イOur translationsimultaneous play for twoChecked by a second AI model, 2026-11-06.The Famicom manual's ten kinds of tile differ from the NES manual's "up to 8 total colors" plus the wild tile. The manual's first page (image 4, read on the page image) doesn't mention the wild tile, so whether the ten include it is open.
Cited by: Klax
The home computer versions came out in the UK as Tengen/Domark releases in the spring of 1990. ACE's May 1990 release box gave the Atari ST and Amiga versions at £19.99 on disk; the ZX Spectrum, Commodore 64, Amstrad and BBC versions at £9.99 on cassette and £12.99 on disk; a PC version at £24.99 on disk; and an MSX version at £9.99 on cassette, all for late April. The Games Machine's May 1990 review lists Tengen/Domark as producer, at £19.99 for the Amiga and Atari ST and £9.99 or £14.99 for the Commodore 64, Spectrum and Amstrad CPC. klax-history/computer-release
p. 43 (image 43), Klax review, release boxATARI ST £19.99dkACE, issue 32 (May 1990) · p. 43 (image 43), Klax review, release boxSPECTRUM £9.99cs*£12.99dk LATE APRILACE, issue 32 (May 1990) · p. 43 (image 43), Klax review, release boxAMSTRAD £9.99cs £12.99dk LATE APRILACE, issue 32 (May 1990) · p. 43 (image 43), Klax review, release boxC64/128 £9.99cs*£12.99dk LATE APRILThe Games Machine, issue 30 (May 1990) · image 38, Klax review, header — the next lines read "PRODUCER TENGEN/DOMARK AMIGA £19.99 ATARI ST £19.99 C64 £9,99/£14,99 SPECTRUM E9.99/E14.99 CPC £9.99/£14,99"GAME KLAXACE, issue 32 (May 1990) · p. 43 (image 43), Klax review, release box, read on the page image — the OCR keeps the price and LATE APRIL but not the format names of the last three rowsPC £24.99dkACE, issue 32 (May 1990) · p. 43 (image 43), Klax review, release box, read on the page imageBBC £9.99cs•£12.99dkACE, issue 32 (May 1990) · p. 43 (image 43), Klax review, release box, read on the page imageMSX £9.99csChecked by a second AI model, 2026-11-06.The release box gives planned prices and dates; the format names of its last three rows (PC, BBC, MSX) were read on the page image. No review of the PC, BBC or MSX versions has been read.
Cited by: Klax
ACE reviewed the Atari ST version in May 1990, by Laurence Scotford, who found that Klax "is not simply a Tetris clone" and "requires more thought and forward planning" than Tetris; the review's box gives graphics 8, IQ factor 5, audio 8, fun factor 9 and an ACE Rating of 880. ACE's August 1990 issue later printed 895 as the rating of the ST version reviewed in issue 32 ("ACE Rating 895"). klax-history/st-ace
Value: review ACE · of 1000 · score 880
MagazineACE, issue 32 (May 1990) ·p. 43 (image 43), Klax reviewIt must be said that Klax is not simply aOur translationIt must be said that Klax is not simply a (Tetris clone).ACE, issue 32 (May 1990) · p. 43 (image 43), Klax reviewTetris it is original enough to carve a niche of itsOur translation(Although Klax is undoubtedly inspired by) Tetris it is original enough to carve a niche of its (own).ACE, issue 32 (May 1990) · p. 43 (image 43), Klax review — the byline that closes the Klax review (OCR line 3634)• Laurence ScotfordACE, issue 35 (August 1990) · p. 65 (image 65), Updates, Amiga, Klax — the line above reads "Versioajreviewed Issue 32;" (Version reviewed Issue 32)ACE Rating 895ACE, issue 32 (May 1990) · p. 43 (image 43), Klax review, rating box — the OCR reads the box's AUDIO 8 as 3; the page image places this box above the Klax review's Predicted Interest Curve and release boxGRAPHICS 8 IQ FACTOR 5ACE, issue 32 (May 1990) · p. 43 (image 43), Klax review, rating box, read on the page image — not in the OCR. The box at the lower left of the page reading ACE RATING 895 belongs to the facing review, Escape from the Planet of the Robot MonstersACE RATING 880Checked by a second AI model, 2026-11-06.The ratings disagree: the May 1990 review's own box (read on the page image) gives 880, and the August issue's Amiga update gives 895 for the version reviewed in issue 32, the figure issue 32 printed for Escape from the Planet of the Robot Monsters; which is ACE's error can't be told from the pages. The value is the review's own 880.
Cited by: Klax
ACE's May 1990 review of the Atari ST version gives a vertical Klax 50 points, a horizontal one 1,000 and a diagonal one 5,000. klax-history/st-ace-scoring
p. 43 (image 43), Klax reviewmake, so they only score a measly 50 points,Our translation(Obviously vertical lines are the easiest to) make, so they only score a measly 50 points,ACE, issue 32 (May 1990) · p. 43 (image 43), Klax reviewwhereas horizontal lines score 1000 and diago¬ACE, issue 32 (May 1990) · p. 43 (image 43), Klax reviewnal lines score a massive 5000 points. To winChecked by a second AI model, 2026-11-06.These are the three-tile scores; Sinclair User 102's players' guide (not pinned here) gives the same three for the Spectrum and higher ones for four and five tiles.
Cited by: Klax
ACE's August 1990 issue rated the Amiga version 830, at £24.95 on disk, finding it almost identical to the ST version apart from its sampled sound, and too fast between blocks to plan stacks: "A tough yet enjoyable puzzler." klax-history/amiga-ace
Value: review ACE · of 1000 · score 830
MagazineACE, issue 35 (August 1990) ·p. 65 (image 65), Updates, Amiga, KlaxDomark; £24.95 dk; STACE, issue 35 (August 1990) · p. 65 (image 65), Updates, Amiga, Klaxis that it is almost identical toACE, issue 35 (August 1990) · p. 65 (image 65), Updates, Amiga, Klaxbetween blocks is far too fast,ACE, issue 35 (August 1990) · p. 65 (image 65), Updates, Amiga, Klaxtough yet enjoyable puzzler.ACE, issue 35 (August 1990) · p. 65 (image 65), Updates, Amiga, KlaxACE RATING 830Checked by a second AI model, 2026-11-06.Cited by: Klax
The Games Machine reviewed Klax in May 1990, by Mark Caswell, and gave the Atari ST version 92% with its Star Player badge. The ST comment found the controls "a little tricky to master", the graphics "very good indeed", and Klax not "instantly playable", but a game that "grows on you". klax-history/st-tgm
Value: review The Games Machine · of 100 · score 92
MagazineThe Games Machine, issue 30 (May 1990) ·image 38, Klax review — the byline under the review's text (OCR line 3582)Mark CaswellThe Games Machine, issue 30 (May 1990) · image 38, Klax review, Atari ST commentGraphically, Klax is very good indeed,The Games Machine, issue 30 (May 1990) · image 38, Klax review, Atari ST commentMonsters. Klax isn't instantlyThe Games Machine, issue 30 (May 1990) · image 38, Klax review, Atari ST commentthe sort of game that grows on you,The Games Machine, issue 30 (May 1990) · p. 38 (image 38), Klax review, rating box, read on the page image — the box beside the text; not in the OCRATARI ST 92%The Games Machine, issue 30 (May 1990) · p. 38 (image 38), Klax review, read on the page image — the badge on the review; not in the OCRTGM STAR PLAYERThe Games Machine, issue 30 (May 1990) · p. 38 (image 38), Klax review, Atari ST commentcontrols are a little tricky to masterChecked by a second AI model, 2026-11-06.Cited by: Klax
The Games Machine's August 1990 issue updated its review of issue 30 for three more versions: the Amiga version got 86% ("still doesn't push the host machine"), the Amstrad version 84% (playable despite "blocky and garish" sprites), and the Commodore 64 version 87%, with the comment that it is "as playable as the other versions". klax-history/tgm-updates
image 53, Machine updates, Klax (Amiga)Amiga version of Klax still doesn't pushThe Games Machine, issue 33 (August 1990) · image 53, Machine updates, Klax (Amiga)Machine update: 86%The Games Machine, issue 33 (August 1990) · image 53, Machine updates, Klax (Amstrad)Amstrad sprites, Klax manages to heOur translation(Despite the usual blocky and garish) Amstrad sprites, Klax manages to be (playable)The Games Machine, issue 33 (August 1990) · image 53, Machine updates, Klax (Amstrad)MC Machine update: 84%The Games Machine, issue 33 (August 1990) · image 53, Machine updates, Klax (C64)backdrops. The winning formula can't fail.The Games Machine, issue 33 (August 1990) · image 53, Machine updates, Klax (C64)Machine rating: 87%Checked by a second AI model, 2026-11-06.Each update names its machine in its header ("Tengen/Domark ■ Amiga", "■ Amstrad", "■ C64") and says "Originally reviewed TGM030". The OCR prints the C64 mark as "Machine rating", the others as "Machine update".
Cited by: Klax
The Games Machine's August 1990 update gave the Amiga version 86%. klax-history/amiga-tgm
Value: review The Games Machine · of 100 · score 86
MagazineThe Games Machine, issue 33 (August 1990) ·image 53, Machine updates, Klax (Amiga)Machine update: 86%Checked by a second AI model, 2026-11-06.Cited by: Klax
The Games Machine's August 1990 update gave the Amstrad CPC version 84%. klax-history/cpc-tgm
Value: review The Games Machine · of 100 · score 84
MagazineThe Games Machine, issue 33 (August 1990) ·image 53, Machine updates, Klax (Amstrad)MC Machine update: 84%Checked by a second AI model, 2026-11-06.Cited by: Klax
The Games Machine's August 1990 update gave the Commodore 64 version 87%. klax-history/c64-tgm
Value: review The Games Machine · of 100 · score 87
MagazineThe Games Machine, issue 33 (August 1990) ·image 53, Machine updates, Klax (C64)Machine rating: 87%Checked by a second AI model, 2026-11-06.Cited by: Klax
Zzap!64 reviewed the Commodore 64 and Amiga versions together in August 1990 and made both Sizzlers, with 92% overall each. The header gives Domark/Tengen, at £9.99 and £14.99 for the Commodore 64 and £19.99 for the Amiga. The review describes 100 waves, each completed by points, tiles survived, or Klaxes, with a warp screen at the start and every five waves; the Commodore 64 game fits in a single load, and the Amiga game adds a simultaneous two-player mode on a split screen. Phil called it "even better (and, believe it or not, more addictive) than Tetris" and, on both machines, "by far the best Tengen conversion yet". Rated parts: Commodore 64 presentation 80%, graphics 71%, sound 69%, hookability 92%, lastability 91%; Amiga presentation 85%, graphics 74%, sound 80%, hookability 92%, lastability 91%. klax-history/c64-amiga-zzap
image 5, contents — the contents lists "KLAX (S)" and "KLAX (Amiga) (S)", both on p. 10; (S) marks a SizzlerKLAX (S)Zzap!64, issue 64 (August 1990) · image 10, Klax review, header — the next line reads "£14.99; Amiga £19.99"Domark/Tengen, C64 £9.99,Zzap!64, issue 64 (August 1990) · image 10, Klax reviewThe game comprises 100Our translationThe game comprises 100 (tile waves)Zzap!64, issue 64 (August 1990) · image 10, Klax reviewcompleted in a particularOur translation(These must be) completed in a particular (way: either by scoring enough points, surviving a set number tiles, or getting enough Klaxes)Zzap!64, issue 64 (August 1990) · image 10, Klax reviewevery five waves, a warpOur translation(At the start of the game, and after) every five waves, a warp (screen allows you to choose which of three levels to attempt next)Zzap!64, issue 64 (August 1990) · image 11, Klax reviewsplits the screen vertically,Our translation(The Amiga game boasts a two-player option which) splits the screen verticallyZzap!64, issue 64 (August 1990) · image 11, Klax review, ratings (C64)Amazingly it's all in one load.Zzap!64, issue 64 (August 1990) · image 11, Klax reviewThis is even better (and,Zzap!64, issue 64 (August 1990) · image 11, Klax reviewbest Tengen conversion yet.Zzap!64, issue 64 (August 1990) · image 11, Klax review, ratings (C64)GRAPHICS 71%Zzap!64, issue 64 (August 1990) · image 11, Klax review, ratings (C64)HOOKABILITY 92%Zzap!64, issue 64 (August 1990) · image 11, Klax review, ratings (Amiga)PRESENTATION 85%Zzap!64, issue 64 (August 1990) · image 11, Klax review, ratings (Amiga)Clever simultaneous two-playerZzap!64, issue 64 (August 1990) · p. 11 (image 11), Klax review, C64 ratings box, read on the page image — the box headed 64; it ends "OVERALL 92% / The best Tengen conversion yet."PRESENTATION 80%Zzap!64, issue 64 (August 1990) · p. 11 (image 11), Klax review, reviewers, read on the page image — the name on the caricature beside the balloon "This is even better (and, believe it or not, more addictive) than Tetris!"; a second balloon is ROBIN's, and a third, the robot figure's, carries no namePHILZzap!64, issue 64 (August 1990) · image 11, Klax review, ratings (C64)SOUND 69%Zzap!64, issue 64 (August 1990) · image 11, Klax review, ratings (C64)LASTABILITY 91%Zzap!64, issue 64 (August 1990) · image 11, Klax review, ratings (Amiga)GRAPHICS 74%Zzap!64, issue 64 (August 1990) · image 11, Klax review, ratings (Amiga)SOUND 80%Zzap!64, issue 64 (August 1990) · image 11, Klax review, ratings (Amiga) — the second HOOKABILITY 92% in the OCR, in the Amiga column; LASTABILITY 91% follows it there tooHOOKABILITY 92%Zzap!64, issue 64 (August 1990) · p. 11 (image 11), Klax review, Amiga ratings box, read on the page image — the box headed amiga; not in the OCROVERALL 92%Revised after a check by a second AI model, 2026-11-06: Quotes every rated part from the OCR; the Amiga overall was read on the page image.The OCR keeps neither Overall mark nor the C64 presentation mark and doesn't name the reviewers; these were read on the page images (images 10-11, printed pp. 10-11). The two ratings columns are headed 64 and amiga.
Cited by: Klax
Zzap!64 gave the Commodore 64 version 92% overall in August 1990, as a Sizzler. klax-history/c64-zzap
Value: review Zzap!64 · of 100 · score 92
MagazineZzap!64, issue 64 (August 1990) ·p. 11 (image 11), Klax review, C64 ratings box, read on the page image — the box headed 64, with the verdict "The best Tengen conversion yet."; not in the OCROVERALL 92%Zzap!64, issue 64 (August 1990) · image 5, contentsKLAX (S)Checked by a second AI model, 2026-11-06.Cited by: Klax
Zzap!64 gave the Amiga version 92% overall in August 1990, as a Sizzler. klax-history/amiga-zzap
Value: review Zzap!64 · of 100 · score 92
MagazineZzap!64, issue 64 (August 1990) ·p. 11 (image 11), Klax review, Amiga ratings box, read on the page image — the box headed amiga, with the verdict "A superb conversion, great value for money at under £20."; not in the OCROVERALL 92%Zzap!64, issue 64 (August 1990) · image 5, contentsKLAX (Amiga) (S)Checked by a second AI model, 2026-11-06.Cited by: Klax
Crash reviewed the ZX Spectrum version (Tengen/Domark, £9.99 and £14.99) in June 1990 as a Crash Smash, with 92% overall. Mark, who wrote the main review, gave it 94%, and Nick 90%; Nick called it "Connect Four taken into the 90s". The verdict was "A cracking coin-op conversion to tease and frustrate", and the ratings box gives presentation 89%, graphics 86%, sound 70%, playability 90% and addictivity 91%. klax-history/spectrum-crash
Value: review Crash · of 100 · score 92
MagazineCrash, issue 77 (June 1990) ·image 43, Klax review, header — the next line reads "■ £9.99/Cl 4.99 ■" (£9.99/£14.99)Tengen/DomarkCrash, issue 77 (June 1990) · image 43, Klax reviewMARK 94%Crash, issue 77 (June 1990) · image 43, Klax reviewNil*If Connect Four taken Into the 90s! Klax Is simplyOur translation(It's) Connect Four taken into the 90s! Klax is simply (damn addictive)Crash, issue 77 (June 1990) · image 43, Klax review, verdictA cracking coin-op conversionCrash, issue 77 (June 1990) · image 43, Klax review, ratings — the next line reads 91%; PRESENTATION 89% stands four lines aboveADDICnVFTYCrash, issue 77 (June 1990) · p. 43 (image 43), Klax review, read on the page image — the badge at the head of the review; not in the OCRA CRASH SmashCrash, issue 77 (June 1990) · p. 43 (image 43), Klax review, Nick's comment, read on the page image — the name and mark of the comment beginning "Connect Four taken into the 90s!"; not in the OCRNICK 90%Crash, issue 77 (June 1990) · p. 43 (image 43), Klax review, ratings, read on the page image — the box reads PRESENTATION 89%, GRAPHICS 86%, SOUND 70%, PLAYABILITY 90%, ADDICTIVITY 91%, OVERALL 92%; the OCR keeps 89% and 91% onlyOVERALL 92%Checked by a second AI model, 2026-11-06."MARK 94%" closes the main text, which Mark signs. The second reviewer, Nick, his mark, and the ratings other than presentation and addictivity were read on the page image (image 43, printed p. 43). Crash's later re-review of the Winning Team compilation (issue 89) is indexed but not read for this set.
Cited by: Klax
Your Sinclair reviewed the ZX Spectrum version (Domark/Tengen, £9.99 on cassette and £14.99 on disk) in May 1990 and gave it 81°. Its reviewer, Jonathan, described the player's bat at the bottom of a conveyor belt, called Klax "a winner" among colored-block strategy games, and thought Tetris "probably has the edge". The final verdict gives life expectancy 85°, graphics 70°, addictiveness 88° and instant appeal 69°. klax-history/spectrum-your-sinclair
Value: review Your Sinclair · of 100 · score 81
MagazineYour Sinclair, issue 53 (May 1990) ·image 5, contents82 Klax/Tengen (Domark)Your Sinclair, issue 53 (May 1990) · p. 82 (image 82), Klax review — the review's header above reads "Domark/Tengen/£9.99 cass/ £14.99 disk"Jonathan Right, let's see if IYour Sinclair, issue 53 (May 1990) · p. 82 (image 82), Klax reviewreally. You control a Batty- style bat, which sits at theYour Sinclair, issue 53 (May 1990) · image 83, Klax reviewgo, Klax is a winner. I think TetrisYour Sinclair, issue 53 (May 1990) · image 83, Klax reviewprobably has the edge, but perhaps I shouldn't beYour Sinclair, issue 53 (May 1990) · image 83, Klax review, final verdict — the OCR's headings run LIFE EXPECTANCY, GRAPHICS, ADDICTIVENESS, INSTANT APPEAL; on the page image the three marks belong to the first three, and instant appeal is 69°85° 70° 88°Your Sinclair, issue 53 (May 1990) · p. 83 (image 83), Klax review, final verdict, read on the page image — the overall mark in the thermometer's bulb, beside INSTANT APPEAL 69°; neither is in the OCR81°Checked by a second AI model, 2026-11-06.The review prints the reviewer's first name only, "Jonathan", beside a caricature on p. 82 (read on the page image); no surname appears on either page.
Cited by: Klax
Sega Visions' November 1992 issue described the Game Gear version as "the coin-op hit brought straight to the Game Gear", with diagonal Klaxes the hardest to make and worth the most points. klax-history/game-gear-sega-visions
p. 88 (image 90), Game Gear reviews, KlaxKlax is the coin-op hit broughtSega Visions, issue 10 (November/December 1992) · p. 88 (image 90), Game Gear reviews, KlaxDiagonal klaxes are the mostChecked by a second AI model, 2026-11-06.Cited by: Klax
By 1991 Klax had appeared on many systems. Atari's Lynx advertising in Electronic Gaming Monthly's August 1990 issue offered Klax, "The latest arcade mega-hit from Atari Games", with 100 levels; Game Player's capsule of June 1991 lists Tengen's Klax for the NES, NEC, Genesis, Lynx, PC, Amiga, ST and 64. In May 1991 Nintendo Power listed Klax among the Game Boy games coming from Mindscape. klax-history/other-versions
image 53, Atari Lynx advertisementform "Klax" fromOur translation(KLAX: The latest arcade mega-hit from Atari Games. You must) form "Klax" from (colored tiles tumbling down the conveyor belt. 100 levels.)Electronic Gaming Monthly, issue 13 (August 1990) · image 53, Atari Lynx advertisementbelt. 100 levels.Game Player's, issue 24 (June 1991) · p. 87 (image 89), Klax capsule — the next lines read "NEC, Genesis, Lynx, PC, Amiga, ST, 64."equally good. Tengen, for NES,Nintendo Power, issue 24 (1991-05) · p. 74, Coming Soon, Game Boy — the next line reads "and Marble Madness from Mindscape."Upcoming games include KlaxChecked by a second AI model, 2026-11-06.Game Player's credits all of them to Tengen; the Lynx advertisement is Atari's. No version beyond the NES, Famicom, home computer and Game Gear ones has been researched for this set, and the Game Boy release itself isn't claimed.
Cited by: Klax