GitHub’s annual month-long game jam is back for its 13th year! This November, make a game inspired by the theme WAVES—literal, digital, or emotional. 👋🏻 🌊 📡

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GitHub's annual Game Off game jam returns for its 13th year with the theme 'WAVES'. Participants have until December 1, 2025 to create and submit games inspired by the theme using any programming language or game engine. Games must be stored in a public GitHub repository, and submissions will be evaluated across six categories including gameplay, graphics, and theme interpretation. Voting runs through January 8, 2026, with winners announced on January 10. The event welcomes developers of all skill levels, from beginners to veterans, working solo or in teams.

GitHub Game Off 2025 theme announcement

Need inspiration? Here are a few concept ideas