Every Saturday at 20:00 UTC

Next jam:

Next week is the 200th One Hour Game Jam! Woo! Aaaand it clashes with Alakajam! So participate in whichever jam you wish, One Hour Game Jam will still be here the weekend after Alakajam after all :D
War game
for 1 Hour Game Jam 72 (Creation)

I hope it works. It probably works. Maybe...

for 1 Hour Game Jam 71 (Reverse)

Platformer, wasd to move

Project Sisyphus
for 1 Hour Game Jam 69 (One button)

Pointless game.

One Hour Game Jam is open-source, Get One Hour Game Jam software on GitHub.
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Established 2015