You have a Roblox game idea. Nemesis builds it.
Describe the game you want. Nemesis designs it, builds the world inside your Roblox Studio, writes the systems, looks at the result, plays it and fixes the errors — then hands you a game you own.
Which game do you want to make?
Each genre asks for different systems. Pick yours to see what it takes and how Nemesis builds it.
Obby
An obby is an obstacle course.
Tycoon
A tycoon is a base that grows: the player buys a machine, it produces, they buy the next one.
Simulator
A simulator repeats a simple action — hit, collect, run — and rewards the repetition.
Horror
Horror does not rest on the monster; it rests on what the player cannot see yet.
RPG
An RPG is the heaviest genre to build: it needs a world, a combat system, progression, quests and a save system that never loses anything.
Survival
A survival game keeps continuous pressure on the player and gives them the means to answer it.
Racing
A race is played at speed, and that changes everything: the player has no time to read the scenery.
Combat & PvP
In a fighting game the smallest imprecision costs: the player who loses must understand why.
Tower defense
A tower defense is played with the head: the player places, upgrades, reacts.
Roleplay
A roleplay game is not won: it is lived.
Farming & fishing
Sow then harvest, cast then reel: these games rest on a short wait and a variable reward.
Story & mystery
A story game holds by its progression: the player moves forward because they want to know what comes next.
Pets & collection
A collection game runs on a simple desire: to complete.
From an idea to a playable game
Every step depends on the previous one, so Nemesis does them in order and checks each before moving on.
- Step 1
Understand
Your idea becomes a game specification: genre, loop, zones, systems, what you do not want.
- Step 2
Design
Art direction and a lighting profile chosen for the genre, so a horror game is dark but readable and an obby is bright but not washed out.
- Step 3
Build
The world is composed in your Roblox Studio through the official Studio MCP server: zones, landmarks, gameplay objects, materials.
- Step 4
Code
Server-authoritative Luau systems: progression, saving, economy, combat, UI — whatever the genre needs, in readable, commented code.
- Step 5
Look
Screenshots are taken and measured. Overexposed, washed-out or unreadable scenes fail the visual check and get corrected.
- Step 6
Play
A real playtest runs inside Studio: the character moves, the console is read, frame time is measured, errors are fixed and the test runs again.
What Nemesis does for you
- Writes and edits Luau code in the context of your whole project, not one snippet at a time.
- Builds worlds from a library of parametric prefabs and materials, coherent with the art direction.
- Generates a few signature images and 3D models per project — on a small budget, only where players will look.
- Runs a security and debugging pass over your scripts, with known Roblox fixes applied before any model is called.
- Playtests inside Roblox Studio, reads the console, measures performance and corrects its own errors.
- Keeps versions of your project so you can go back to a previous state.
What you should know before starting
- The interface, the reports and the assistant's replies are in French today. You can describe your idea in English, but you will be reading French.
- Nemesis Desktop, the app that connects Nemesis to your Roblox Studio, runs on Windows. There is no macOS version yet.
- There is no free tier. Every AI action has a real cost, so access starts with a subscription.
- Nemesis never publishes anything on your behalf and never asks for your Roblox password. You sign in with Roblox OAuth, and publishing stays your move, from Studio.
- Nemesis does not copy maps, characters, music or assets from existing games. An idea inspired by a known work becomes an original game.
Pricing
Monthly plans, billed in euros. Credits are spent by the AI actions you run; a full production announces its budget before it starts.
Créateur
19 € / month
3,500 credits per month
Pro
39 € / month
8,500 credits per month
Studio
79 € / month
17,500 credits per month
What you need
- A Roblox account — you sign in with it.
- Roblox Studio on Windows 10 or later. Studio does not exist on phones, tablets or Linux.
- Nemesis Desktop for Windows, connected to Studio through its official MCP server.
The AI is included in your plan: no Claude, ChatGPT or other subscription is needed on your side.
Questions people ask about AI and Roblox
Can AI create a Roblox game?
Yes, if the AI works inside Roblox Studio rather than only in a chat window. A general chatbot can write a script you paste by hand; Nemesis composes the world in Studio, writes the systems, takes screenshots, runs a playtest and fixes the errors it finds. The result is a playable game you own, built under your Roblox account.
How do I create a Roblox game with AI?
Describe the game in a few sentences: what the player does, why they come back, what it looks like, and what you do not want. Connect Nemesis Desktop to Roblox Studio. Accept the announced budget. Nemesis then designs, builds, codes, looks, plays and corrects, step by step, and reports what it did.
What is the best AI for Roblox game development?
It depends on what you need. For a code snippet, any strong model works. For a whole game, you need a system that knows Roblox specifically — server authority, DataStore limits, mobile readability — and that can act inside Studio and test its own work. Nemesis is built for that second case. It orchestrates several models and chooses the cheapest one that does the job.
Does Nemesis work with Roblox Studio?
Yes. Nemesis Desktop connects to Roblox Studio through Roblox's official MCP server. That is how it builds worlds, writes scripts, takes screenshots and runs playtests in your own Studio, on your own place file.
Do I need to know how to code in Luau?
Not to get a playable game. A little, if you later want to change precise rules yourself — and the code Nemesis produces is readable and commented for exactly that.
What is Luau?
Luau is the scripting language of Roblox, derived from Lua 5.1 with gradual typing and performance work by Roblox. Every Roblox game is written in it, and so is everything Nemesis writes for you.
Is Nemesis free?
No. Every AI action has a real cost, so Nemesis has no free tier. Plans start at 19 € per month and include a monthly credit allowance. A full production announces its credit budget before it starts, and you accept it once.
Does Nemesis work in English?
Partly. You can describe your idea in English, but the interface, the reports and the assistant's replies are in French today. An English interface is not available yet, and this page says so rather than letting you find out after paying.
Who owns the game?
You do. The project is built inside your Roblox Studio, under your Roblox account, and published by you. Nemesis keeps a copy of the project files to work on them and to offer versions; it claims no rights on your game.
Does Nemesis need my Roblox password?
Never. You sign in on Roblox's own website through OAuth. Nemesis receives a token limited to identifying you and, if you allow it, adding generated assets to your inventory. It cannot read your password and does not ask for it.
Which Roblox game genres can it build?
Obby, tycoon, simulator, horror, RPG, survival, racing, combat and PvP, tower defense, roleplay, farming and fishing, story and mystery, pets and collection — and hybrids. Nemesis starts from your description, not from a template.
Does the AI copy existing Roblox games?
No. It does not reproduce maps, characters, music, models or scripts from an existing game or licensed work. When you name a known game or franchise, Nemesis understands the intent and designs an original experience inspired by it.
Ready to see your game in Studio?
Sign in with Roblox, describe your idea, connect Studio, and let Nemesis work.
Start with Nemesis