To make a Roblox simulator with AI, you build four systems in order: the action players repeat to earn currency, the currency itself, an upgrade tree that makes the action more rewarding, and rebirths that reset progress for a permanent multiplier. Every simulator on the platform is that same skeleton wearing a different theme.
That formula is why the genre suits AI generation so well — it's well-understood, and you can describe each piece precisely. This guide builds a mining simulator end to end, then covers the part AI can't do for you: tuning the curve so people keep playing.
The simulator skeleton
Every simulator has the same four systems:
- The action. What players click/touch to earn currency. Mining = swing pickaxe. Lifting = press button. Farming = harvest crops.
- The currency. Money, gems, coins, strength — a number tracked per-player in leaderstats.
- The upgrade tree. Tools/pets/multipliers bought with currency, each making the action more rewarding.
- The rebirth. A reset mechanic that wipes progress in exchange for a permanent multiplier. This is the long tail — it's what brings players back after they'd otherwise hit the cap and quit.
The differences between shipped simulators are mostly theme and polish, not structure.
Step 1: Pick a theme
The theme determines art direction, naming, and progression scale:
- Mining simulator — pickaxes, mineshafts, gem types, deep tiers
- Strength simulator — gym equipment, weights, lifts that get bigger numerically
- Farming simulator — crops, fields, harvesters, seasons
- Sword simulator — swords with bigger numbers, enemies that drop currency
Pick one. The AI executes any of these similarly — the difference is the asset descriptions you feed it.
Step 2: Generate leaderstats and core currency
Start with the foundation:
Set up leaderstats for a mining simulator. Two stats: Coins (IntValue, persists across sessions via DataStore) and Rebirths (IntValue, also persisted). Default starting Coins = 0, Rebirths = 0.
The AI generates a leaderstats script with a PlayerAdded connection that builds the folder, DataStore load/save with retry logic, and a BindToClose handler so data isn't lost on shutdown.
Test persistence before building anything on top of it — join, gain coins, leave, rejoin, confirm they're still there. Everything downstream depends on this working.
Step 3: Generate the action
For mining: a pickaxe Tool that swings on activation and, on hitting a Part tagged Ore, increments coins by the ore's Value attribute.
Create a pickaxe Tool in StarterPack. When the player activates it, play a swing animation and check for ore in front of the character. If found, increment Coins by the ore's Value attribute, play a hit sound, and respawn the ore after 5 seconds.
The AI handles the LocalScript (animation trigger) and ServerScript (hit detection, currency increment) split, using RemoteEvents for the boundary. Keep the currency increment on the server — if the client can tell the server "I earned 10,000 coins," exploiters will.
Place 20 ore Parts with Value = 1 and test that mining pays out.
Step 4: Generate the upgrade shop
Upgrades are what keep players engaged. A typical mining simulator has 5–10 pickaxe tiers, a few backpack upgrades, and optionally pets for passive multipliers.
Create a shop ScreenGui with a Pickaxes tab. Pickaxes: Wood (free, 1x), Stone (cost 100, 2x), Iron (cost 1000, 5x), Diamond (cost 25000, 15x), Mythic (cost 1000000, 100x). When a player buys one, deduct the cost from Coins, swap their tool, and save it to their DataStore.
The AI builds the ScreenGui cards, the server logic to deduct and swap, and the DataStore field remembering owned pickaxes. Those specific numbers are a starting point, not a recommendation — step 8 is where you find out if they're right.
Step 5: Add rebirths
Rebirths are the long-tail mechanic. Without them, players finish your upgrade tree and leave.
Add a Rebirth button to the shop. Cost: 1M Coins for the first rebirth, doubling each time. Rebirth resets Coins to 0 and all pickaxes to Wood, but increments the Rebirths leaderstat by 1. Each Rebirth grants a permanent +25% coin multiplier on all future earnings.
The math is what hooks players: the first rebirth should feel obviously worth it, and each subsequent one should sit just far enough out to chase. If your first rebirth feels like a punishment, the multiplier is too weak.
Step 6: Optional — pets
Pets are the meta of modern simulators. Optional, but strong for retention.
Add a pet system. Pets follow the player and give a multiplier. Three tiers: Common (1.1x), Rare (1.5x), Legendary (3x). Pets are obtained by hatching Eggs that cost Coins. Each player can equip up to 3 pets at once.
The AI builds the egg-hatching UI (the suspense moment), the pet-following script using AlignPosition, and the inventory UI.
Step 7: Visual polish
The fastest way to look professional:
- Generate stylized props with AI 3D model generation — ore types, mine entrances, theme elements
- Commit to a strong color palette — one dominant color reads as intentional
- Big numbers everywhere. Floating "+10" when you mine. Big celebrations on rebirth. Sound on every action.
- A "coins per second" counter on the HUD so players can see their progress speed
How do you tune a simulator's progression curve?
This is the part AI can't do for you, and it's the part that decides whether your game works.
Play your own simulator for 10 minutes and time how long each upgrade takes to afford. The classic failure modes are opposite ends of the same mistake: early progression so slow players quit before the second upgrade, or late progression so fast they max out in 20 minutes with nothing left.
A reasonable shape to aim for: the first upgrade lands within a couple of minutes, the next few space out gradually, the basic tree takes a few sessions to complete, and rebirths carry everything after that. Each upgrade should feel like it arrives just as the previous one gets boring.
Then fix what's off with targeted prompts:
The jump from Stone Pickaxe to Iron Pickaxe takes too long — reduce Iron's cost from 1000 to 400.
Your own playtest is weak evidence, though. You know exactly where the ore is and you're motivated to like your game. Real players are the actual test.
Publish and iterate
Publish via File → Publish to Roblox As. Including "Simulator" in the title genuinely helps in-platform discovery — it's the word players search.
After launch, watch what players actually do. If they all quit at one specific upgrade, that upgrade is too expensive. If they rebirth once and never return, your rebirth multiplier is too weak.
Frequently asked questions
What makes a Roblox simulator successful?
Pacing more than theme. The loop is the same everywhere, so what separates games is whether each upgrade lands right as the previous one stops feeling good, and whether rebirths give committed players a ladder to climb. Polish — sounds, numbers popping, celebrations — makes a working curve feel better, but it can't rescue a broken one.
How do I stop exploiters cheating currency in my simulator?
Never let the client decide how much currency it earned. The client requests an action, the server validates it (is the player near real ore? is the cooldown elapsed?) and applies the reward. Any RemoteEvent that takes an amount from the client and adds it to leaderstats will be abused.
Do I need pets in my simulator?
No. Pets are a retention multiplier on a loop that already works — they're not what makes it work. Ship the core loop, confirm people play it, then add pets. Building an egg-hatching system on top of a boring core just gets you a boring core with eggs.
How long does it take to make a simulator with AI?
The systems in this guide come together fast — the generation is the quick part. The tuning isn't. Expect to spend more time on step 8 than on all the generation steps combined, because that's the part that actually determines whether the game works.
Next steps
- How to Make a Roblox Obby With AI in 30 Minutes — a smaller first project
- How to Generate Lua Scripts With AI for Roblox Studio — deepen the gameplay scripting
- How to Create Roblox GUIs With AI — shop and inventory interfaces
- How to Build a Roblox Game With AI
Install Revix and prototype your simulator in one sitting.