AI Roblox Game Generator — From Text to Playable Game
Type a game description, see an AI concept image, and get a complete Roblox .rbxlx file in under 60 seconds. Maps, items, weapons, pets — all AI-generated.
PromptBlox is an AI Roblox game generator. You describe what you want in plain text, the AI generates a concept image based on your description, and then builds a complete Roblox game file you can open in Studio and play immediately.
The whole pipeline runs in your browser. No downloads, no software to install, no Roblox Studio required for the generation step itself.
How the AI Generation Works
1. You write a prompt
Describe your game in plain English. Theme, mood, game type — whatever you have in mind. The AI understands natural language so you don't need any special syntax.
2. AI generates a concept image
A visual AI (Google Gemini) renders a concept showing what your game will look like — colors, structures, atmosphere. This image drives everything that comes next.
3. AI builds the game structure
Using your concept as a visual guide, the AI places platforms, cover objects, spawn points, terrain features, and decorations to match the theme.
4. AI writes the Luau scripts
Every interactive element gets a script — kill bricks, lava zones, checkpoints, score counters, earn loops. The scripts are clean and functional out of the box.
5. You download a .rbxlx file
Everything is packaged into a single .rbxlx file compatible with Roblox Studio. Open it, press F5, and you have a playable game.
What You Can Generate
Tip:The quality of your output depends heavily on your prompt. Specific prompts produce better results. "Neon cyberpunk city obby with glowing platforms and laser barriers" will generate something much more interesting than just "obby."
Frequently Asked Questions
How is this different from other Roblox game makers?
Most "Roblox game makers" are just template pickers or tutorials. PromptBlox generates unique games from your specific description — the obby you make won't look like anyone else's. The AI writes real Luau scripts, not placeholder code, so games work out of the box.
Can I generate a game for someone else?
Yes. Generate games for friends, teammates, or anyone. Everything you generate is yours to download and share. Every generation also gets a shareable preview link you can send without downloading.
What if the AI generates something I don't like?
You can generate a new concept image for 5 credits, or adjust your prompt and regenerate. The more specific your prompt, the more predictable the output.
Is it free to use?
Yes — 1 free game per day plus 100 bonus credits on sign-up. No credit card required. Pro plans start at $14.99/month for 30 games per month.
What would you build?
Tell us what Roblox game type or feature you wish PromptBlox could make. We read every suggestion.
Try the AI game generator free
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