A downloadable game for Windows, macOS, and Linux

Buy Now$2.99 USD or more

A game of cosmic battle. Ram your opponent out of the ring, into oblivion. Attack? Parry? Dodge? Ro-Cham-Bo

You might consider checking out this game's much more feature rich spiritual successor: Rebop Blasters

  • Keyboard Controls:
    • Player One
      • (W/Z)(A/Q)SD: movement
      • SPACE: dodge (tap to parry)
    • Player Two
      • ARROW KEYS: movement
      • COMMA: dodge

Joysticks should work out of the box, left stick to aim, any button to dodge. If your joystick doesn't work, let me know and I'll address it.


Q: Isn't it spelled "Rochambeau"?

A: Cosmic Rochambo bears no resemblance to your Earth-game.

Q: Why are we fighting?

A: Because you must.

Send me videos of epic matches!

PlatformsWindows, macOS, Linux
Rated 4.2 out of 5 stars
(71 total ratings)
GenreFighting, Sports
TagsLo-fi, Neon, one-button
Average sessionA few minutes
InputsKeyboard, Gamepad (any)
AccessibilityOne button
MultiplayerLocal multiplayer
Player count1 - 2


Buy Now$2.99 USD or more

In order to download this game you must purchase it at or above the minimum price of $2.99 USD. You will get access to the following files:

cosmic-rochambo-windows.zip 99 MB
Version 49
cosmic-rochambo-osx.zip 99 MB
Version 45
cosmic-rochambo-linux.zip 113 MB
Version 44

Development log