3D & Generative · Sep 24, 2026
Retro DOS demoscene demo synced to tracker music
Retro DOS demoscene demo… by gandamu, credited to Claude Opus 5.5. Watch the 3D & Generative video, explore the shared prompt and visit the original X post.
gandamu@gandamu_ml
View on XA 6-minute real-time 1990s-style demoscene demo in C/C++ and OpenGL, with effects synced to Purple Motion's Second Reality S3M track that the author supplied.
The prompt behind it.
This work also used reference images, audio or other inputs.
Original prompt
I would like you to create a kickass, impressive 1990s style demoscene demo using this S3M track as the music. Prior to getting to work, please see how to best play and analyze the S3M track. This will be important since synchronization of effects and appropriateness of scenes to the musical vibe (and this song does have a variety of sections with different attitude) is essential to a great demoscene demo. Also prior to getting started, please research what kinds of effects, physics, etc. would be good to use in combination. Please use C/C++ -- with appropriate demoscene/embedded/console gamedev sensibilities to avoid needlessly bloating compile times -- with OpenGL. In some cases, blitting to surfaces in realtime may be appropriate.. while in others, using OpenGL or even shaders is appropriate as well. It should be planned and polished to be spectacular and shocking. This is Claude's way of really showing off to the world that it kicks ass.
Video and prompt by gandamu. Original post ↗ · Prompt source ↗ · Prompt archive ↗
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