Retro DOS demoscene demo synced to tracker music
37.5K views·771 likes·359 saves·92 reposts·Posted 24 Sept 2026 · 6:23 · Interactive
Our note
A DOS-style demoscene demo built in C/C++ and OpenGL, featuring lo-fi lowpoly mountain flythroughs timed to a Purple Motion S3M tracker track from Second Reality; the creator describes it as a genuine single-prompt one-shot.
The creator’s post
Opus 5.5 just one-shot this 90s-style demoscene demo for me. It's pretty good. It's a genuine one-shot (in colloquial X post sense - single prompt) and my first attempt asking it to do such a thing. I just supplied Purple Motion's music from Second Reality. C/C++ and OpenGL.
The prompt
One-shot demoscene briefI 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.
Make one like this
1 · Copy the prompt
Use the prompt above as your starting point, then change the subject and the style.
2 · Direct it like an editor
Ask for one self-contained HTML file on a fixed 1920×1080 stage, link this video as the reference, and send two or three rounds of specific notes.
3 · Render it to MP4
Screen-record a short piece, or capture it frame by frame for exact timing. How →
How it was made
The creator didn’t name their tools. Most videos like this are HTML, canvas or SVG animation written by Claude and screen-recorded or rendered to MP4. How that works →
Look
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