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Klax
Klax is a puzzle game developed by Atari Games in 1990. Players control a creature that collects and matches colored tiles on a grid-based board. The gameplay involves forming patterns horizontally, vertically, or diagonally to clear tiles and advance through levels. Players use directional controls to move and action buttons to grab tiles. The game features multiple difficulty levels and progressive level designs that increase in complexity. Klax combines tile-matching mechanics with strategy elements, requiring players to plan moves ahead to maximize tile combinations and clear objectives before running out of moves.
- Developer
- Atari Games
- Released
- 1990
- Platform
- Arcade
- Genre
- Puzzle
- Rating
- 4.4 / 5 (4.9K)
- Last updated
Klax Controls — Arcade Keyboard Keys
Default keyboard bindings for Klax on our in-browser Arcade emulator. Plug in a USB or Bluetooth gamepad to auto-detect mappings, or rebind any key from the emulator settings menu.
| Keyboard | Console button | Typical use |
|---|---|---|
| ↑ | Joystick Up | Move up |
| ↓ | Joystick Down | Move down |
| ← | Joystick Left | Move left |
| → | Joystick Right | Move right |
| X | Button 1 | Primary action (jump / confirm) |
| Z | Button 2 | Secondary action (attack / cancel) |
| S | Button 3 | Tertiary action |
| A | Button 4 | Quaternary action |
| Q | Button 5 | Fifth button |
| W | Button 6 | Sixth button |
| 5 | Insert Coin | Insert coin |
| 1 | 1P Start | Start / Pause |
Coin and Start are convention "Insert Coin: 5" and "1P Start: 1". Some arcade boards expect specific button mappings — check the in-game prompts on coin-up.
Rebind any key from the EmulatorJS in-game settings menu (gear icon → Controls). A connected gamepad auto-maps to the same buttons.
Klax Longplay & Gameplay Videos
Watch a full playthrough of Klax on Arcade before you dive in — recommended for getting a feel for the game's pacing, story beats, and difficulty curve.
Watch longplay on YouTube
"Klax" Arcade longplay 1990
External references
Frequently Asked Questions
When was Klax released?
Klax was released in 1990 for the Arcade.
Who developed Klax?
Klax was developed by Atari Games, available to play in your browser on RetroGameSpace.
What type of game is Klax?
Klax is a Puzzle game for the Arcade, playable instantly in your browser — no downloads, no installs.
How can I play Klax for free?
Open this page and click "Play Now" — Klax runs free in your browser via WebAssembly emulation. No account, no payment, no installer.
Do I need to download anything to play Klax in the browser?
No. Klax streams from a public archive into a browser-side Arcade emulator. Nothing is installed on your computer.
Can I save my progress in Klax?
Yes. Save states are stored in your browser (IndexedDB) per game, and you can also use any in-game save the original Arcade cartridge supported.
Does Klax work on mobile devices?
Yes — the Arcade emulator runs on iOS Safari and Android Chrome. Touch controls overlay the game; landscape mode is recommended.
Is it legal to play Klax this way?
RetroGameSpace is a transient caching reverse-proxy and does not host first-party copies of Klax. Game files are fetched on demand from publicly-accessible archives. You are responsible for compliance with your local laws and the bring-your-own-ROM principle.
