Creator rebuilds Terraria in 3D with Opus 5.5 in eight days

Using only Claude Opus 5.5, a creator wrote a custom C# engine of about 346K lines in eight days, with 3,369 items and 313 enemies, and had models, music and sound effects all AI-generated.

Crunio | CGメディア

@Botan_crArchived 2026.10.07Originally posted 2026.10.06