Video by Simonas (@SimonasLTU1) · originally posted on XView original post on X
Claude Opus 5.5
Hyper-realistic RDR2-style Tetris
Simonas@SimonasLTU1Solo run11 likes715 views
Claude Opus 5.5 (High) one-shots a Three.js Tetris in the style of Red Dead Redemption 2. Per the post it used about 1% of usage over roughly 30 minutes; the video is sped up 2x.
One model’s result, not a side-by-side. See other models on Tetris clone; prompts, tools and time differ, so compare loosely.
Models
| Model | Effort | Time | Notes |
|---|---|---|---|
| Claude Opus 5.5Anthropic | High | 30 min | ~30 min, ~1% usage, stated |
Details
| Kind | Solo run (one model) |
|---|---|
| Task | Hyper-realistic RDR2-style Tetris |
| Topic | Tetris clone |
| Prompt (from the post) | Create a hyper-realistic Tetris game in the style of RDR2, all in a single HTML file using HTML/CSS/Three.js. |
| Category | Games |
| Mode | One shot |
| Posted | |
| Video length | 59 s |
| Likes / views | 11 / 715 · as of Oct 18, 2026 |
| Bookmarks | 4 |
| Sponsored | No |
| Original post | x.com/SimonasLTU1/status/2111215178532491265 |
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