A downloadable game for Windows, macOS, and Linux

Made at the ROM Game Jam 2015

erf rescue force, assemble!

Protect the erf from menacing asteroids! Deflect them with mass driver cannons, or mine them to fuel your research efforts. Smaller asteroids need to be detected by the scanner. Keep researching technology until you unlock the Colony Ship to save erf!

Two gamepads highly recommended!

Keyboard controls:

Player 1: WASD, Left Control, E

Player 1: IJKL, Right Control, O

PlatformsWindows, macOS, Linux
AuthorFractal Phase
TagsCo-op, jam, Local Co-Op, Sci-fi
Average sessionA few minutes
InputsKeyboard, Gamepad (any)
MultiplayerLocal multiplayer
Player count1 - 2


Windows .zip 14 MB
Mac 26 MB
Linux 27 MB

Install instructions

have fun, erflings!


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Absolutely enjoyed the wheels off of this in CooOp mode! Thanks you for making it!

(1 edit)

I can't play the game, it always crashes...

Update: Got it to work, but disappointed to the horrible controls.


i approve of recursive acronyms.