A Demo is a runnable program showing real-time graphics, usually in sync with music. A demo is NOT a pre-rendered video.

You may create a demo for any supported desktop platform. There is no upper limit on team size, but the submitter must be present at the party.

Submit a compressed archive (preferably ZIP or TAR) containing everything needed to run the demo. Multiple submissions are allowed where the competition permits it.

Winners are determined by audience voting unless the competition metadata lists a different judging method.

The goal is to showcase technical and creative skills. Focus on what the team does best — either large visual spectacle or a clever small idea executed well.

Realtime entries must be executable programs. Pure animation files without an executable runner are not allowed in demo-style realtime compos.

Entries must run from read-only media and should not permanently modify system settings. Temporary runtime files in standard temporary directories are permitted.

Users must be able to exit at any time by pressing a key (on PC: ESC).

Entries may be recorded at 1080p60 (or 1080p50) for judging or streaming. If requested, provide a high-quality capture and instructions for running the entry.

If a rule is unclear, the competition organizers will make the final decision. Organizers may clarify or amend rules if necessary; such changes will be announced if done after the entries can be handed in.

When requested, submit a screenshot and any required metadata or readme describing used techniques, formats, and third-party assets (with licenses).

Include a short readme.txt in your submission describing used techniques, any third-party assets (with license info), platform and playback instructions.

Multiple submissions are allowed in many competitions. See the specific competition page for limits. Each submission should be an independent entry.

If you need the organizers to test your entry on compo machines, contact the competition organizer early to arrange testing.

All competition entries must be uploaded to the competition system before the stated deadline. Deadlines are hard unless the competition organizer explicitly grants an extension.

Entries must be previously unreleased and primarily original material. You may include small previously released components (logos, short samples etc.) only if you have the rights to use them and they are not the main substance of the entry.

Do not use copyrighted material you do not own or have permission to use. Covers, remixes, copyrighted samples and unlicensed logos will lead to disqualification.

Entries with primarily AI-generated content are not allowed. AI may be used for assistance, but the majority of the entry must still be the competitors' own work.

Organizers reserve the right to disqualify entries that contain explicit sexual content, racist or hate material, or otherwise violate the event rules or the spirit of the party.

By submitting, you accept the competition contract and grant the organizers the rights display, judge, distribute and use the entry for purposes related to Kandu and The Gathering, including promotion of these.

Attendance. To receive physical prizes you or your representative must attend the prize-giving ceremony.