Min Choi builds Roblox game Capture A Beast with Claude in about two weeks

• Capture A Beast is a Roblox game Min Choi says he built with his children without writing code himself, according to his walkthrough.
• Custom creatures moved from Tripo to Blender as GLB files before Claude rigged them through Blender MCP, Choi explained in a reply.
• The published version took about two weeks, according to his estimate, with repeated family playtests driving revisions.

The Roblox listing describes seven zones, including a volcano, and rare gold, diamond and rainbow beasts. Roblox’s MCP documentation describes how an external AI client can write scripts and run playtests directly inside Studio.

Choi broke production into six stages in his walkthrough:

1. Idea: Brainstorm with the children, then refine the concept with Claude Opus 5.5.
2. Game: Connect Claude to Roblox Studio through Roblox MCP and build from those ideas.
3. Characters: Generate custom 3D beasts with Tripo AI.
4. Movement: Use Claude and Blender MCP to rig the creatures.
5. Visuals: Generate images and textures with what he calls GPT Images 2.5.
6. Testing: Play together, identify bugs, ask Claude for fixes and repeat.

For planning and design, he said in a follow-up that he used Claude Code with Opus 5.5 at “Extra Effort.”

Capture A Beast, from Claude and Roblox Studio to creature rigging and family gameplay

Choi also named Rojo when another developer asked about the setup.

The two connections have different jobs:

• Studio MCP: Roblox’s documentation says the server runs locally and lets an AI client inspect the open game’s data model and execute Luau code.
• Rojo: Its live-sync workflow connects project files on disk to Studio. Running rojo serve and connecting the Studio plugin makes file changes appear in real time.

Rojo is the unglamorous glue in this toolchain.

Choi supplied one concrete asset-transfer detail: he handed Claude a GLB from Tripo, then had it rig the creature through Blender MCP.

The first version came together overnight, Choi said. Reaching the published build took roughly two weeks, with many iterations after playtesting with his children.

His children loved the experience, he told another commenter. He also shared a public play link and asked players what the family should add next.

The game listing describes the capture-and-forge loop:

1. Cast a Rune Cage to catch a wild beast.
2. Carry its glowing essence home.
3. Forge rune stones.