Pixel-art Hearthstone-style card game
A strategy game AiSongMan｜AI Workflow Lab built with Claude Opus 5.5. Copy the exact prompt free.
@aisongman built this with Claude Opus 5.5 and shared the one-shot prompt on X; it is quoted below word for word. 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 original post had 175 views.
The prompt
Create a 1-on-1 card game like Hearthstone. Just make it. As best you can. In pixel art style.
Prompt by AiSongMan｜AI Workflow Lab (@aisongman), quoted word for word from the original post. Model as stated by the creator; your result will differ.
What’s inside
- Copy the prompt below, or download it as a SKILL.md
- Paste it into Claude Opus 5.5, ideally in Claude Code so it can write, run and test the game
- Swap in your own theme, characters or rules where the prompt names theirs
- Play it, then ask for fixes and polish in plain words
What you’ll bring
- Claude Opus 5.5 (Claude Code, or a Claude chat for single-file HTML games)
- A browser to play the result
- Your own twist on the idea, if you want one
What you’ll get
- A playable browser game in the spirit of the one above, written by Claude
- The code, which you can keep editing
Perfect for
- Anyone who wants to make a game without coding
- Developers testing what Opus 5.5 can build
- Teachers and parents making a game with kids
Also found as
opus 5.5 game prompt · claude game prompt · one shot game prompt · strategy · pixel-art hearthstone-style card game
Questions
What is Pixel-art Hearthstone-style card game?
Pixel-art Hearthstone-style card game is a strategy game that AiSongMan (@aisongman) built with Claude Opus 5.5. This page quotes the prompt they shared, word for word.
Who made it, and where was the prompt shared?
AiSongMan (@aisongman) made it and shared the prompt on X: https://x.com/aisongman/status/2103763192971461057. You can find more from them at https://x.com/aisongman.
How do I use the prompt?
1. Copy the prompt below, or download it as a SKILL.md. 2. Paste it into Claude Opus 5.5, ideally in Claude Code so it can write, run and test the game. 3. Swap in your own theme, characters or rules where the prompt names theirs. 4. Play it, then ask for fixes and polish in plain words.
Is it free?
Yes. Copying the prompt and downloading the SKILL.md costs nothing on Omo. You run it with your own access to Claude Opus 5.5.
The video and the prompt belong to AiSongMan｜AI Workflow Lab. Omo lists them free, with credit and a link to the original post. Creators can ask us to remove a listing at omo.space/support.