TerraWorld AI skill builder

Teach the AI you already use how to design Terraria structures once, then just describe what you want to build. Everything is generated in your browser.

1. Preferences

AI replies in

Default style (optional)

Every enclosed room is a valid NPC house Background wall, light, table, chair and door.

2. Pick your AI

Press Download Claude skill to get the zip file. Do not unzip it.
Open claude.ai, go to Settings → Capabilities and turn on Code execution and file creation.
Under Skills, choose Upload skill and pick the zip file.
Done. In any chat, including the phone app, just ask something like "Design a two-storey wooden house for 4 NPCs". Claude uses the skill, checks the spec and sends a link that opens in Structure Studio.

New to AI design? Read the AI structure design guide, or open Structure Studio. Your AI cannot open terraworld.dev? Every file is also on GitHub.