Pixel-art card battle game modeled on Hearthstone
68 views·1 saves·Posted 26 Sept 2026 · 0:15 · Interactive
Our note
A fully playable pixel-art card battle game with opposing minion boards, health and mana counters, and a hand of spell cards, closely mirroring Hearthstone's layout. Open-sourced from a three-line prompt, no design doc.
The creator’s post
THIS IS INSANE 😱 I built an entire Hearthstone-style game with Opus 5.5 in one go. The gameplay and UX are almost identical — only the graphics are different. And this was literally my entire prompt: “Create a 1-on-1 card game like Hearthstone. Just make it. As best you can. In pixel art style.” That’s it ! No game design doc. No detailed mechanics. No UI spec. It just built the game. And yes — I open sourced the whole thing. Play it + source code ↓
The prompt
Minimal one-line game briefCreate a 1-on-1 card game like Hearthstone. Just make it. As best you can. In pixel art style.
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
Views as of collection. Video, post and prompt © their creator.
Create with Zryth