A downloadable game for Windows, macOS, and Linux

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Embark on a journey through space and time, battling a cosmic menace to save the Universe. Using the all powerful Cossanox this alien seeks to reshape the known universe in order to spread and consume. You and your crew must put an end to the threat and recover the Cossanox.


Cossanox is a shoot em up with the following features.

  • Play solo or up to four player local co-op
  • Lots a power ups, weapons, and a charge shot
  • Campaign with seven levels 
  • Huge boss battles
  • An unlockable Boss Rush mode
  • Six unique playable ships


Default Controls

Main Weapon Fire   A / Cross / Keypad 8
Charge Weapon      B / Circle / Keypad 5
Weapon Swap        Y / Triangle / Keypad 6
Turn Ship          X / Square / Keypad 4
Turret Aim Left    LB / L1 / Keypad 7
Turret Aim Right   RB / R1 / Keypad 9
Up                 Left Stick Up / W
Down               Left Stick Down / S
Left               Left Stick Left / A
Right              Left Stick Right / D
Pause              Start / Escape
Menu Accept        A / Cross / Enter
Menu Cancel        B / Circle / Backspace

Controls can be remapped through the controls menu if desired.

Updated 6 days ago
PlatformsWindows, macOS, Linux
Release date 94 days ago
GenreAction, Shooter
Made withGodot, GIMP, Audacity, LMMS
Tags2D, Local Co-Op, Local multiplayer, Pixel Art, Shoot 'Em Up, Side Scroller
Average sessionA few seconds
InputsKeyboard, Mouse, Gamepad (any)


Buy Now
On Sale!
50% Off
$5.99 $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. Your purchase comes with a Steam key. You will get access to the following files:

Cossanox Windows 64bit 63 MB
Cossanox Windows 32bit 62 MB
Cossanox Linux 64bit 64 MB
Cossanox Linux 32bit 64 MB
Cossonox Mac OS X 66 MB

Development log

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