This jam is now over. It ran from 2021-12-12 00:00:00 to 2021-12-20 00:00:00. View 11 entries

What is libGDX?

libGDX is an open-source, cross-platform game development framework built in Java:

Unlike many popular editor-based platforms, libGDX is entirely code-centric, offering developers fine-grain control over every aspect of their game. It is the perfect place for exploring ground-up implementations, built on top of lightning-fast OpenGL, and distributable to Desktop, HTML, Android, and iOS.

The libGDX Jam

With our 18th collaboration, the libGDX Jam continues the time honored tradition of making awesome games using the best framework out there. We encourage camaraderie, teamwork, and good sportsmanship with a side of well-intentioned buffoonery.


Theme Submission: 12/5/21 - 12/7/21. Everyone will be allowed to submit a theme for the jam.

Voting: 12/9/21 - 12/11/21.  Everyone will vote on their favorite theme. May the best win!

Jam: 12/12/21 - 12/18/21. Participants will create their games and rejoice!


  • The game must be created with the libGDX framework.
  • The game must be created within the jam period. Late submissions are to be approved by admins.
  • Starter projects and templates are permitted so long as they are not fully fledged games.
  • You can work in groups or individually.
  • Your game must be based on the selected theme of "Machines & Slimes".
  • Any and all copyright laws pertaining to assets you use must be followed.


Be sure to get involved with the community by joining the libGDX discord server!


All submissions
Browser playable (7)
Windows (4)
macOS (4)
Linux (4)
Android (1)

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libGDX December 2021 Game Jam project
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Async Multiplayer Slime Fiesta!
Construct fantastic machines producing slimes
Mechanized Warfare with Slimes
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A game for the libGDX Jam of December 2021
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Help the slimy quantum computer virus climb out of an infected quantum computer so that it can destroy the world!!!
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Duke it out in 1v1 combat for Slime Supremacy! LibGDX Jam 19 entry
A game for libGDX Jam 19
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How slimy is YOUR machine?
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