Make me an animated pixel-art Halloween diorama, built to be the looping cover for a 10-hour lofi music video. Build the palette on strong warm/cold contrast: a cold, rainy night against warm pockets of firelight and glowing windows. Bring it to life with great effects: rain, fire sparks, drifting smoke and flickering light. It should look crisp full-screen at 1080p and loop smoothly for hours.
Make it yours. Change "Halloween diorama" and the mood line ("a cold, rainy night against warm pockets of firelight and glowing windows") for another season or place. The last line ("crisp full-screen at 1080p and loop smoothly for hours") is what makes it usable as a stream cover.
Looping pixel-art Halloween diorama
A looping pixel-art Halloween scene made as the cover for a lofi stream: a rainy island with a glowing tea house, turnip lanterns, and a skeleton reading by a campfire. Opus 5.5 wrote it in TypeScript from a three-sentence prompt in about 10 minutes.
“Exact, 100% the prompt, it picked TS.”
- Claude Opus 5.5
- TypeScript
- One-shot
- 10m
- $20 plan
You'll need
- A coding agent working in a web or TypeScript project
- Screen capture or a frame renderer if you want a video file, since the result is a live animation
How it was made
Run on Extra High. The creator says the model picked TypeScript because their project was already in TypeScript, that scenes like this take 6 to 15 minutes, and that the live scene on the blog is the code-based animation itself, not a video.
Ran on the creator's $20 Claude plan, using about 10% of a 5-hour limit (around 15% in another reply).
Posted Sep 23, 2026 · r/aigamedev on Reddit · 1.3k upvotes · 164 comments
Prompt from: The creator's blog post, linked from the Reddit post as "Live scene + prompt"
Look notesby Reference
A cozy pixel-art night scene: a small house on an island of rock glows with warm windows and a campfire in the rain under a full moon.
- Color
- Deep indigo and slate sky, amber windows and campfire orange, a red umbrella, pale moonlight, and cyan glints from crystals, wisps, and a waterfall.
- Type
- No text.
- Framing
- One locked wide shot with the island in the center: a two-story house with a smoking chimney, a lamp post, a bare tree hung with small lanterns, and a pale figure under a red umbrella by the fire. Glowing crystals and a white fossil sit in the rock below, and a waterfall spills off the left edge.
- Structure
- The same scene in every frame, with rain throughout and a lightning bolt in the second and last frames.
