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How to Use Claude for Roblox Dev

A beginner-friendly guide to using Claude AI to help you build Roblox games

What is Claude?

Claude is an AI assistant made by Anthropic. You can ask it questions, have it write code, explain concepts, debug errors, and much more. Think of it as a super smart coding buddy that's always available.

You can use it at claude.ai (free tier available) or through Claude Code (a command-line tool for developers).

→ Setting Up Claude (Windows & Mac)

→ Browse all Docs & Guides

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🚀
Getting Started
First steps with Claude
▼
1
Go to claude.ai and create a free account
2
Click "New Chat" to start a conversation
3
Type what you need help with — be specific about what you're building
4
Claude will respond with an answer, code, or explanation. You can keep chatting to refine it.
✍️
Writing Good Prompts
How to ask better questions
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The better your prompt, the better Claude's answer.

Be specific, not vague

Bad Prompt
"Make me a script"
Good Prompt
"Write a Roblox Luau script that gives the player 10 coins when they touch a part called CoinPart"

Give context about your project

Good Prompt
"I'm making a drone combat game in Roblox. I need a script that spawns a drone model from ServerStorage when a player clicks a button in a ScreenGui"

Tell Claude what you've already tried

Good Prompt
"I wrote this script but it errors on line 5 with 'attempt to index nil'. Here's my code: [paste code]. What's wrong?"
Tip: You can paste your entire script into Claude and ask it to explain, fix, or improve it.
💻
Using Claude for Roblox Scripting
Create, explain, and convert ideas to code
▼

Claude knows Luau (Roblox's scripting language) and can help with:

Creating new scripts

Prompt: "Write a Roblox server script that saves player data using DataStoreService. Save their coins, level, and inventory."

Explaining existing code

Prompt: "Explain what this script does line by line: [paste code]"

Converting ideas to code

Prompt: "I want a shop system where players can buy items with coins. The shop GUI should show item name, price, and a buy button. Use RemoteEvents for server validation."

Learning concepts

Prompt: "Explain how RemoteEvents work in Roblox. Give me a simple example of client-to-server communication."
Tip: Always tell Claude whether you need a Script (server), LocalScript (client), or ModuleScript. This avoids confusion about where code runs.
🐛
Debugging with Claude
Fix errors and broken scripts
▼

Got an error? Here's what to include:

1
The error message — copy it exactly from the Output window
2
Your code — paste the full script, not just one line
3
What you expected vs what actually happened
Example Debug Prompt
"I'm getting this error: 'Players.MonoMagic1.PlayerGui.ShopGui.Frame.BuyButton.LocalScript:12: attempt to index nil with FindFirstChild'. Here's my script: [paste code]. The button should subtract coins and give the item."
Tip: If Claude's fix doesn't work, tell it! Say "That didn't fix it, I'm now getting [new error]" and keep going.
🎨
Game Design Help
Balancing, game loops, monetisation, UI
▼

Claude isn't just for code — it can help design your game too:

Balancing
"I have a tycoon game where players earn 10 coins per second. Items cost 100-10000 coins. Does this feel balanced? How long would it take to buy everything?"
Game Loop
"I'm making an arena combat game. Help me design a round system: lobby > team select > fight > results > rewards > repeat"
Monetisation
"What are fair ways to monetise a Roblox game without making it pay-to-win? My game is a drone shooter."
UI/UX Ideas
"Describe a clean, modern inventory UI layout for a Roblox RPG. What info should each item slot show?"
💡
Tips & Tricks
Get the most out of Claude
▼
Break big tasks into steps. Instead of "make me a full game", start with "make me a player data system", then "make me a shop", etc.
Ask Claude to use modern Luau. Say "use Luau with type annotations" or "use task.spawn instead of spawn" to get up-to-date code.
Paste screenshots of errors. If you're using Claude with image support, you can screenshot your Roblox Studio output window.
Ask for comments. Say "add comments explaining each section" if you want to learn from the code Claude writes.
Use follow-up questions. After Claude gives you code, ask "how would I add X to this?" or "what if I also wanted Y?" to build on it.
Show Claude edited photos / screenshots. In Claude Code, you can paste a file path to an image and Claude will look at it. This is great for showing UI mockups, error screenshots, or design references. Just say something like "look at this screenshot" and paste the path.
Give Claude file paths to read. Instead of pasting huge files into chat, just give Claude the file path and ask it to read it. For example: "Read C:\Users\YourName\project\script.lua and fix the bug on line 12". Claude Code can read any file on your computer — scripts, images, configs, etc.
Drag and drop files into Claude. In Claude Code's terminal, you can drag a file from File Explorer directly into the chat window. Claude will read the file path and open it automatically — no need to type the path manually.
Use file paths for context. When asking Claude to fix or modify code, give it the full path so it knows exactly which file to edit. For example: "In C:\Users\YourName\MazeRunner\src\PlayerData.lua, add a field for player health". The more specific you are about which file, the better the result.
⚠️
What Not to Do
Common mistakes to avoid
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Don't blindly copy-paste code without reading it. Always understand what a script does before putting it in your game.
Don't share API keys or secrets in public Claude chats. If you need help with secrets, describe the structure without the actual values.
Don't expect perfection first try. Claude sometimes makes mistakes. Test the code, and if it's wrong, tell Claude what went wrong — it gets better with feedback.
Don't ask for exploits or cheats. Claude won't help with that, and it can get your Roblox account banned.
🎲
Connecting Claude to Roblox Studio
Use Claude Code to build directly in Studio
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Claude Code can connect directly to Roblox Studio using the Roblox Studio MCP server. This lets Claude read your game, insert scripts, run code, and build systems — all without you copy-pasting anything.

What You Need

1
Claude Code installed on your computer — Setup Guide
2
Roblox Studio open with your game place
3
The Roblox Studio MCP plugin installed in Studio

Setting Up the MCP Server

1
Install the MCP server globally:
npm install -g roblox-studio-mcp
2
Add it to your Claude Code config. Open ~/.claude/settings.json and add:
{ "mcpServers": { "Roblox_Studio": { "command": "roblox-studio-mcp", "args": [] } } }
3
Install the companion Roblox Studio plugin that lets the MCP server communicate with Studio. Follow the plugin instructions from the MCP package.
4
Open Roblox Studio, open your game, then start Claude Code. Claude can now read and write to your place!

What You Can Do

Prompt: "Add a script to ServerScriptService that gives players 100 coins when they join"

Claude will create the script and insert it directly into your Studio place — no copy-paste needed.

Prompt: "/setup-shop"

Claude Code skills like /setup-shop, /setup-datastore, and /setup-combat work directly with the MCP to build entire game systems in minutes.

Tip: Keep Roblox Studio open and focused while Claude is working. The MCP needs Studio to be running to insert scripts and models.
⚖
Connecting Claude to Unity
Use Claude Code for Unity C# game development
▼

Claude Code works great with Unity projects. While there's no direct MCP plugin like Roblox Studio, Claude can read, write, and edit your Unity C# scripts, shaders, and config files directly.

Setting Up

1
Install Claude Code — Setup Guide
2
Open a terminal inside your Unity project folder (the folder that contains Assets/, ProjectSettings/, etc.)
3
Run claude to start Claude Code
4
Claude can now read all your scripts in Assets/Scripts/ and edit them directly

What Claude Can Help With

Player Controller
"Create a first-person player controller script in C# for Unity. Include WASD movement, mouse look, jumping, and sprinting."
UI System
"Create a health bar UI script that reads from a PlayerHealth component. Use Unity's UI toolkit (Canvas, Image fill)."
Save System
"Build a save/load system using JSON serialization. Save player position, inventory, and settings to a file."
Enemy AI
"Write an enemy AI script with NavMesh pathfinding. The enemy should patrol between waypoints, chase the player when in range, and attack when close."
Shader
"Write a custom URP shader in ShaderGraph-compatible HLSL that creates a dissolve effect controlled by a float parameter."

Project Structure Tips

MyUnityGame/ Assets/ Scripts/ Player/ PlayerController.cs PlayerHealth.cs Enemies/ EnemyAI.cs EnemySpawner.cs UI/ HealthBar.cs InventoryUI.cs Systems/ SaveSystem.cs AudioManager.cs Prefabs/ Scenes/ Materials/ ProjectSettings/ Packages/

Keep your scripts organized in folders. When asking Claude for help, tell it which folder and file to work in.

Useful Prompts for Unity

Prompt: "Read Assets/Scripts/Player/PlayerController.cs and add a wall-running mechanic"
Prompt: "Create a ScriptableObject for item definitions with fields for name, icon, rarity, stats, and description"
Prompt: "Write a pooling system for projectiles using a generic ObjectPool<T> class"
Prompt: "Add multiplayer support to my player movement using Unity Netcode for GameObjects"
Tip: Tell Claude your Unity version (e.g. "Unity 6" or "Unity 2022 LTS") and render pipeline (URP, HDRP, or Built-in) so it generates compatible code.
Tip: Claude can't press Play in Unity for you, but it can read error logs if you paste them. Copy errors from the Unity Console and ask Claude to fix them.

Things Claude Can't Do in Unity (Yet)

No direct Unity editor access — Claude can write/edit C# files but can't drag things in the Scene view, create GameObjects, or modify Inspector settings. You'll need to do that manually or via editor scripts Claude writes for you.
No asset creation — Claude can't make 3D models, textures, or audio. Use Blender, Substance, or asset stores for those.

Workaround: Editor Scripts

Ask Claude to write Unity Editor scripts that automate tasks you'd normally do by hand:

Prompt: "Write a Unity Editor script that creates a new enemy prefab with a NavMeshAgent, Rigidbody, Capsule Collider, and my EnemyAI script attached"

This way Claude can effectively set up GameObjects, components, and scenes through code.

🌐
Using Claude for Web Development
Build websites and web apps with Claude Code
▼

Claude Code is excellent for web development — it can create entire websites, fix CSS issues, build APIs, and deploy to production.

Getting Started

1
Open a terminal in your project folder (or create a new one)
2
Run claude to start Claude Code
3
Describe what you want to build
Full Website
"Create a personal portfolio website with a dark theme, hero section, project cards, skills list, and contact form. Use vanilla HTML/CSS/JS."
Backend API
"Set up a Node.js Express server with routes for user login (JWT), getting posts, and creating posts. Use express.json() middleware."
Fix CSS
"The navbar overlaps the content on mobile. Read style.css and fix the responsive layout. The hamburger menu should appear below 768px."
Add Feature
"Add a dark/light theme toggle to the website. Store the preference in localStorage. Use CSS variables for colors."

Claude Can Help With

  • HTML structure and semantic markup
  • CSS layouts (Flexbox, Grid, responsive design)
  • JavaScript (DOM manipulation, fetch API, events)
  • Node.js / Express backends
  • Database setup (MongoDB, PostgreSQL, SQLite)
  • Authentication (OAuth, JWT, sessions)
  • Deployment to Vercel, Netlify, or GitHub Pages
  • React, Vue, Next.js, and other frameworks
Tip: Check out the Making Websites guide and Publishing with Vercel guide in the Docs section for step-by-step tutorials.