3D & Generative · Oct 6, 2026

Claude Opus 5.5 rebuild Terraria in 3D . Custom engine, 3,300+ items, 313 enemies and bosses, all made by the AI, progress so far

Claude Opus 5.5 rebuild Terraria in 3D . Custom… by Anipixels, credited to Claude Opus 5.5. Watch the 3D & Generative video and visit the original Reddit post.

Anipixelsu/Anipixels
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Opus 5.5
647 net upvotes on Reddit, checked Oct 15, 2026

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From the creator’s post · Anipixels on Reddit
This is just a fan project 8 days in for me, not for money and not for anything official. I saw Minimunch's video on Opus 5.5, and the part where he makes a fan recreation of Terraria in 3D got me so hyped that I wanted to see what it would look like if someone just kept going. So I subbed to Claude and started this fan project. This is where it is after 8 days, using Opus 5.5 for everything All the art and assets are generated by code some stuff by Claude using blender animations are code too he just keeps going and reviewing until eventually its good, game sound and music as well that's code too Scale is based off terraria so blocks are similarly small compared to the player. How I worked: honestly I did it lazy and tried to push every single part of the work onto Claude. Most of my prompts are things like "continue however you think is best for our goal". When I play, I take screenshots and explain whether something is a bug or a visual change I want, and those go straight…
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