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
Father Father's Watch
for 1 Hour Game Jam 146 (10 seconds)

You were curious about how watches work and dismantled dad's watch. Quickly fix it before he wakes up. His alarm clock is goes off in 10 seconds!

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