The Tithe: dark harvest game

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

The Tithe: dark harvest game cover
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by Ethan HannFreeOpus 5.5 game prompts

Ethan Hann built this with Claude Opus 5.5 and shared the full prompt on GitHub; it is quoted below word for word. A small browser game from a single kick-off prompt, run on Opus 5.5 at Max effort. The creator records each follow-up in the project's own README. Kick-off prompt; the creator steered a little during the build.

The prompt

You are an experienced game developer that is an expert at 3d game design.

Your goal is a 3d game with the following idea:
Genre: Souls-like
Rule: Everything is connected
Setting: Utopia
Theme: Revenge

STANDING RULES:
1) The game must have a goal and an end state.
2) The game should have a small tutorial at start explaining the mechanics.
3) You must use Three.js for 3d rendering.
4) One contained HTML file.
5) No subagents and no workflows.

Keep going until it is finished. Finished means you would be proud to show it, not that it runs.

Check your work by running it, not by reading the code.

Before you stop, use it the way a first-time player would. List the weakest parts of the experience and fix them. Do this at least twice.

Make every decision yourself. Do not ask me anything. When you finish, tell me what you could not verify.

Prompt by Ethan Hann, quoted word for word from their GitHub repository. 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 · the tithe: dark harvest game

Questions

What is The Tithe: dark harvest game?

The Tithe: dark harvest game is an adventure and RPG game that Ethan Hann 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?

Ethan Hann made it and shared the prompt on GitHub: https://github.com/ethan-hann/claude-fun#the-tithe. You can find more from them at https://github.com/ethan-hann/claude-fun.

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 Ethan Hann. 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.