The annual Game Off, a month-long game jam hosted by GitHub since 2012, invites developers of all levels to create games inspired by a yearly theme, with 2025’s theme being "WAVES." Participants have until December 1, 2025, to submit their interpretations of the theme, ranging from literal to abstract concepts like sound waves or emotional surges. The event encourages creativity and collaboration, allowing developers to work solo or in teams, using any game engines, programming languages, or libraries, with GitHub serving as the platform for source code storage. After the submission phase, entries are evaluated based on gameplay, graphics, audio, innovation, and theme interpretation, with winners announced in January 2026. The jam fosters a supportive environment for both newcomers and experienced developers, promoting open-source participation and innovative game development, while emphasizing fun and community engagement through voting and discussions on platforms like itch.io and Discord.