How to Make a +1 Game Using Claude AI (Step by Step)

2026年11月6日

Want to make your own +1 game in Roblox without writing code? Here’s exactly how I built Veilbound with Claude, ForgeGUI and Roblox Studio: 8 steps, one master prompt and one follow-up.

Game:
ForgeGUI:

Claude connects to Roblox Studio through MCP, so it can build, script and playtest the game itself. ForgeGUI connects to Claude too, so it can make UI, 3D models and sounds.

⏱️ Chapters
0:00 What we are making
0:17 What you need
0:33 Step 1: Turn on Studio MCP server
0:52 Step 2: Connect ForgeGUI to Claude
1:40 Step 3: Connect Roblox Studio to Claude Code
2:10 Step 4: The master prompt
2:49 Step 5: Send it to Claude
3:25 Step 6: Playtest
3:57 Step 7: Fix it with a follow-up prompt
4:27 Step 8: Playtest again
5:08 3 quick tips
5:28 Outro

🛠️ What I used
• Claude (Opus 5.5) + Claude Code
• ForgeGUI (ForgeMCP)
• Roblox Studio (Studio MCP server)
• ChatGPT, only to write the master prompt

💬 What +1 game would you make? Comment your idea.
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元動画はこちら：https://www.youtube.com/watch?v=cy5SfCd10lM