Hello, and welcome to the home of the bimonthly game jam for libre games, LibreJam!

At the beginning of every other month, the jam begins, with a unique theme being released to add extra challenge. Participants have two weeks to develop and publish their game, working solo or in teams. Once time is up, all games are published to the site for others to view, and ratings are opened for seven days, before a winner is announced.

Current Jam


=> [1] FSD approved license list


Once your game is finished, submit it by posting it in the mailing list[2]. The subject line should be in the format "[SUBMISSION] WEEK - Game name here". Obviously, you should replace "WEEK" with the week number (top of this page).

You can either attach your game's source code (in "tar". or "zip" format) to the email *or* upload it to an external source (please do this if your game is larger than 1 MiBs!). If you choose the latter, you must provide a SHA256 checksum, so we can verify the file has not changed. On UNIX systems, you can find the SHA256 checksum of a file easily using the "sha256sum" command.

Note that the mailing list is not private; your messages will be displayed publicly, and others will be able to reply to it with their own comments and feedback.

[2] LibreJam mailing list


Anyone can submit ratings for games, not just jam participants. To submit a rating, reply to the submission post for the game in question on the mailing list for the following categories:

Ratings are accepted until the end time given at the top of the page, after which ratings for all games are tallied and winners are announced.


Come and chat with us in the #librejam IRC channel[3] (webchat also available[4]) on LOHIRC. Here you can brainstorm, team up and chat about development! If you have a question about the jam, write to the mailing list, or chat in the IRC channel.

[3] #librejam on LOHIRC. Connect using an IRC client *with SSL*

[4] Webchat at KiwiIRC


In addition to the above rules, there are some guidelines that you might want to keep in mind while developing your game. These are not mandatory, but they're generally good advice for helping you create an end product which is fun for everyone:

Jam index

202202 - Gates

202112 - Leech

202110 - Noise

202108 - Swarm

202106 - Time

202104 - Snowed in

202102 - Subnautical

202101 - Cooperation

202012 - Engineering in space