The fifth annual "Game Off" game jam, hosted by GitHub, has commenced with the theme "throwback," inviting participants to create games inspired by nostalgia, retro elements, or ancestral characteristics. Participants can work individually or in teams to develop their games using open-source software, with submissions due by December 1 at 13:37 PDT. Games are to be submitted via itch.io, and voting, open to all participants, will follow the event's conclusion. GitHub supports newcomers with resources on Git, GitHub, and version control, while the itch.io community offers a platform for sharing tips and progress. The event encourages creativity and collaboration, with highlighted games to be featured on the GitHub Blog.