Build an Unreal Engine game mission with Claude Code

Loadout menus, shooting mechanics, bullet effects and ragdoll physics built in Unreal with Claude Code.

by Brendan Jowett12 Oct 2026

Prompt for your agent

Goal: Build a playable mission in a real game engine.
Setup: agents used in source: Claude, Antigravity; tools/MCPs stated: Unreal Engine.
Steps:
1. Set up the engine project.
2. Have the agent build loadout menus, shooting, effects and physics.
3. Play the mission and iterate.
Rules: ask me before anything irreversible (sending, posting, paying, deleting); don’t invent data, results or tools I haven’t given you; tell me what you couldn’t verify.
Based on: Brendan Jowett — https://x.com/jowettbrendan/status/2109538818210799979 (summarised from source; the source has no explicit step list)

Steps are our summary of the source (it has no explicit step list). Includes a “Based on” credit line.

I tried this

Tell the next builder. One anonymous answer each; click again to undo.

Agents, models and tools only what the source states

Agents
Claude Antigravity
Tools
  • Unreal Engine

Sources & credit