Opus 5.5 Coded for 3 Days… and Built SKYRIM

Claude Opus 5.5 computer use put to the test. I let Opus 5.5 take control of my computer and code for 3 days straight, and it built a playable Skyrim-inspired game in Unreal Engine using Blender, complete with Riverwood, NPCs, and a full quest.

I also test Opus 5.5 on animated videos made from scratch and a ray-traced Minecraft, and see how it stacks up against OpenAI’s GPT-6 Astra for AI computer use.

Setup

• Mac Mini
• Mac Studio 128GB (For Local Inference)
• RTX 5090 (32GB VRAM)
• LM Studio for local LLM hosting

Links

• Prompts
• X
• Website
• Cool Tech
• Mac Mini
• Mac Studio
• Nvidia 5090

Chapters

• Opus 5.5 With Computer Use (0s)
• Animated Videos From Scratch (56s)
• Opus 5.5 Animated Video Example 1 (115s)
• Opus 5.5 Animated Video Example 2 (205s)
• Opus 5.5 Raytraced Minecraft (363s)
• Opus 5.5 Skyrim - Blender + Unreal Engine (705s)
• Skyrim Unreal Engine Gameplay Demo (985s)

Watch on YouTube.