A playable 3D game built with Claude Opus 5.5 working through Blender and Unreal Engine, shown in a gameplay clip of about a minute. The creator says they can actually play it.

Per the creator, Opus 5.5 produced it using Blender and Unreal together, and a follow-up from the creator adds animation, including flying and surfing.

Why it matters: Blender and Unreal are normally slow to learn and stitch together. If an AI agent can drive both well enough to produce something playable, small teams could prototype game worlds much faster.

Credit: @dhruvalgolakiya https://x.com/dhruvalgolakiya/status/2115106296794104086/video/1