Build a Game in Unity with Claude Opus 5.5

A professional workflow for building Unity game slices with AI-assisted 3D pipelines.

Description

A comprehensive 7-step development workflow transitioning from an empty folder to a playable Unity 6 slice. It leverages Tripo p2.0 for 3D asset generation and Claude Opus 5.5 to autonomously audit and repair complex rigging, weights, and mesh clipping issues via a Blender MCP connection.

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Details

Why this is interesting: Provides a practical, advanced methodology for using LLMs to automate technical 3D gamedev tasks like rig auditing.
Built with: Opus 5.5 Tripo3D FLUX.2 Klein Base 9B
Tags: #gamedev #unity #3d #workflow

Discovered: X
First posted: X · Oct 15, 2026
Listed: Added 1h ago
Build: Strong
Models: Strong

Prompts

Prompt 1

check the skeleton, weights, texture links and foot contact. don’t fix anything yet

Source

Prompt 2

/unity:unity-cli Build a greybox level in a new scene called Courtyard.

Layout: a square courtyard about 40 by 40 metres, a raised walkway
along one side reached by stairs, three relay pads spread around,
and an exit door in the far wall. 1 unit = 1 metre.
Use primitives and plain URP materials only. No final art.

Add a third-person player who can walk, sprint and jump, with a
camera that follows over the shoulder. Use the Input System.

Done means: I press Play and can reach all three pads, the door
and the walkway.
Work through the connected Editor, not by hand-editing scene files.
When it compiles: enter Play mode, confirm frames are advancing,
capture the game view and read the console for errors.
Report every script, prefab and scene you created.
If something fails, stop and tell me. Don't work around it.

Source

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