Build Roblox games
with AI agents
BloxBot is a free, open-source AI agent for Roblox Studio. Connect Claude, ChatGPT or any model to Studio's official MCP server to build scripts, maps, UI and 3D models.
Downloading? A star on GitHub helps other creators find BloxBot.
- creators a day
- 1,000+
- tokens a day
- 15B+
- free and open source
- $0
Make a racing game with desert, neon city, and sky island tracks. Add vehicle physics and a multiplayer lobby.
Done. I've created three tracks with terrain, obstacles, and checkpoints:
All deployed to your Studio workspace. Ready to playtest.
Features
Why creators pick BloxBot
Use your Claude, ChatGPT or OpenCode plan
Build on the plan you already pay for: ChatGPT Plus or Pro, OpenCode Go from $10 a month, or your Claude Pro or Max plan through your own Claude Code login, at your own risk. OpenCode Zen, API keys and free models work too.
3D models with Blender
New in 0.15. One click sets up Blender and its official MCP server. The agent models your props, you check them in the chat, and once Studio's permissions are on, one click uploads them to your published place. No API key.
Edit your place without switching apps
The Explorer shows your place live. Drag any object into the chat to reference it, or change properties, attributes and tags in place, even in places with tens of thousands of objects.
Control Roblox Studio
BloxBot doesn't just suggest code. Through Roblox's official Studio MCP it builds parts, scripts, terrain and UI, and with Code Mode it does several Studio steps at once.
Any model, switch anytime
Claude Fable 5, GPT-6 Astra, Gemini 3.5 Flash, free models or a local one. Pick the benchmark leader for debugging and something cheaper for quick edits, in the same chat.
Chat, goals and notifications
One calm workspace with goals, your own instructions, and notifications when a long build finishes or needs you. Playtest plans check the result before you ship.
See how BloxBot compares to Roblox Assistant, Lemonade, Superbullet and more
How it works
Start building in three steps
Download and enable
Download BloxBot and open Roblox Studio. Enable the built-in MCP server in Studio's Assistant settings. No plugins, no config files, no terminal.
Connect your AI
Sign in with ChatGPT, add OpenCode Go or Zen, use your Claude plan through your own Claude Code login (at your own risk), paste an API key, or start on the free models. The AI connects to Studio's official MCP and gains full context of your project.
Describe and build
Tell the AI what to create in plain language. BloxBot translates your ideas into real Studio actions: scripts, parts, terrain, UI.
Add coin pickups with sparkle effects and a score counter
Created 20 coins with particle effects, a ScreenGui counter, and collection sounds. Coins respawn after 30 seconds.
Benchmarks
Which models are best for Roblox?
Results from Roblox's OpenGameEval benchmark — 117 evaluations across two skill categories. All of these models are available in BloxBot.
Pass@1 = first-attempt success rate. Pass@5 = success within 5 attempts. Scores last published June 2026; three eval checks changed July 24 without a revised run. Source: Roblox/open-game-eval
Guide
Roblox AI news and tutorials
Creator news, AI workflows, and practical guides for building better Roblox games.
Make 3D models for Roblox with AI in Blender
BloxBot 0.15 sets up Blender and its official MCP server in one click. The agent models, you check the FBX or GLB in chat, and one click uploads it through Studio.
Read moreGetting startedUse Claude Pro or Max for Roblox Studio with BloxBot
BloxBot 0.14 can run Roblox Studio work on your Claude plan by driving your own Claude Code login through the Agent SDK. How to connect it, and why it is at your own risk.
Read moreProductReference, edit and tweak your Roblox place in BloxBot's Explorer
The 0.14 Explorer shows your place live, edits properties, attributes and tags in place, and turns any object into a chat reference.
Read moreProductBloxBot 0.14: a redesigned app on OpenCode 2
One calm chat surface, goals, notifications, your own instructions, working slash commands, and OpenCode 2's Code Mode for faster Studio work.
Read moreBenchmarksRoblox AI benchmarks in November 2026: OpenGameEval's paper and CEGame-Bench
Nothing has replaced OpenGameEval, but Roblox published its paper on October 1 and CEGame-Bench scored GPT-6 Astra on Roblox Studio on October 19.
Read moreCase studyOpus 5.5 Roblox Crossroads: three hours, ten agents, one map
Stravant's public, copyable Roblox Crossroads remake makes the viral Opus 5.5 claim unusually easy to inspect. See what three hours and ten agents produced.
Read moreUpdates
What we've been building
last year, I connected Roblox Studio with Claude, and I felt like a developer god. announcing bloxbot.ai a desktop app that comes with all the things you need to get started with agentic Roblox Studio development. completely free and open-source
Hearing good things about using GLM-5 or Claude Opus 4.6 for Roblox game development? Available in bloxbot.ai now!
NOOOOO DON'T PAY FOR A GLORIFIED MCP SERVER TO BUILD ROBLOX GAMES WITH AI
Open source
Built in the open, for everyone
MIT licensed. No hidden costs, no vendor lock-in. Built on the official Roblox Studio MCP and OpenCode. Inspect every line, contribute improvements, or fork it to build something entirely new.
Thank you
BloxBot runs on OpenCode
Every chat, every Studio tool call and every model connection in BloxBot goes through OpenCode, the open-source coding agent. BloxBot simply wouldn't exist without it. A big thank you to the OpenCode team for their continued hard work, and for building it in the open.
Everyone deserves great
game dev tools
Whether you're building your first obby or a complex multiplayer RPG, BloxBot meets you where you are. Free forever.
A star takes a second and helps other creators find BloxBot.