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
LOST Screenwriter Simulator by gallopingdino LOST Screenwriter Simulator
for 1 Hour Game Jam 111 (Lost)

OK, it's time to write some screenplay! Add as many plot twists as possible and try not to ruin the story.

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