Screenshots
CoMotion
CoMotion is an action arcade game released in 1976 by Gremlin. Players control a moving marker on a rectangular playfield, drawing lines to carve out sections of the grid in a style similar to maze-filling or territory-claiming gameplay. The objective is to fill a required percentage of the playfield while avoiding enemies that patrol the board and will destroy the player on contact. Controls are directional, guiding the marker along the grid lines. The game increases in difficulty as enemies move faster and become more numerous with each successive stage. CoMotion represents an early example of the territory-capture genre that would later influence titles like Qix, making it a notable piece of arcade history from the mid-1970s.
- Developer
- Gremlin
- Released
- 1976
- Platform
- Arcade
- Genre
- Action
- Rating
- 4.6 / 5 (4.3K)
- Last updated
CoMotion Controls — Arcade Keyboard Keys
Default keyboard bindings for CoMotion 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.
CoMotion Longplay & Gameplay Videos
Watch a full playthrough of CoMotion 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
"CoMotion" Arcade longplay 1976
External references
Frequently Asked Questions
When was CoMotion released?
CoMotion was released in 1976 for the Arcade.
Who developed CoMotion?
CoMotion was developed by Gremlin, available to play in your browser on RetroGameSpace.
What type of game is CoMotion?
CoMotion is a Action game for the Arcade, playable instantly in your browser — no downloads, no installs.
How can I play CoMotion for free?
Open this page and click "Play Now" — CoMotion runs free in your browser via WebAssembly emulation. No account, no payment, no installer.
Do I need to download anything to play CoMotion in the browser?
No. CoMotion streams from a public archive into a browser-side Arcade emulator. Nothing is installed on your computer.
Can I save my progress in CoMotion?
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 CoMotion 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 CoMotion this way?
RetroGameSpace is a transient caching reverse-proxy and does not host first-party copies of CoMotion. 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.
