Ancient Rome pixel beat 'em up

An adventure and RPG game Koldo Huici built with Claude Opus 5.5. Copy the exact prompt free.

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by Koldo Huici (@koldo2k)FreeOpus 5.5 game prompts

@koldo2k built this with Claude Opus 5.5 and shared the full prompt on X; it is quoted below word for word. Rome wasn't built in a day. This arcade game took about 3 hours with Claude Opus 5.5 + the Magnific MCP. 🏛️ The original post had 1.1K views.

The prompt

Using the Magnific MCP, build a playable pixel-art beat 'em up set in ancient Rome, as one HTML file that works on mobile. Generate a key art first and use it as style reference for every asset: stage, hero, enemies, a war-elephant boss, items. Animate the characters with image-to-video on green screen, pick the frames that loop, key out the green and keep every animation on the same scale and palette. Add touch controls, combos, shield, dodge, a throwable pilum, pickups, a 1-minute demo mode and a chiptune soundtrack. Tell me the credit cost before each generation.

Prompt by Koldo Huici (@koldo2k), quoted word for word from the original post. Model as stated by the creator; your result will differ.

What’s inside

  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

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 · adventure & rpg · ancient rome pixel beat 'em up

Questions

What is Ancient Rome pixel beat 'em up?

Ancient Rome pixel beat 'em up is an adventure and RPG game that Koldo Huici (@koldo2k) 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?

Koldo Huici (@koldo2k) made it and shared the prompt on X: https://x.com/koldo2k/status/2104571944842498150. You can find more from them at https://x.com/koldo2k.

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 Koldo Huici. 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.