If you're looking to build your first game, using a roblox basic simulator script is probably the best way to get your feet wet without losing your mind. Let's be real: simulators are the backbone of Roblox. Whether you're clicking a weight, swinging a sword, or eating a giant sandwich, the logic underneath is usually pretty much the same. You do a thing, a number goes up, and you spend that number to make the number go up even faster later.
Setting this up isn't as scary as it looks. You don't need to be a math genius or have years of coding experience to get a functional prototype running. Today, we're going to break down how to handle the "Leaderstats," the clicking mechanism, and a simple shop system that makes the whole thing feel like an actual game.
The Foundation: Leaderstats
Every simulator needs a way to track progress. If your players can't see their coins or "Strength" increasing at the top of the screen, they're going to quit in about five seconds. To do this, we need a script that runs as soon as a player joins the game.
In Roblox Studio, go to your ServerScriptService and create a new Script. We'll call this "LeaderboardSystem." The goal here is to create a folder inside the player object called leaderstats. Roblox is programmed to look for this specific folder name and display whatever is inside it on the UI.
You'll want to use the game.Players.PlayerAdded event. Inside that, you'll create an IntValue or NumberValue. Let's go with "Coins." It's a classic. Make sure you parent the value to the leaderstats folder. If you forget to do that, your coins won't show up on the leaderboard, and you'll be staring at a blank screen wondering what went wrong. It's a rite of passage for every dev, honestly.
Making Things Happen with a Click
Now that we have a place to store our numbers, we need a way to change them. This is where the roblox basic simulator script really comes into play. Most simulators use a "Tool" that the player holds. When the player clicks while holding that tool, they get a point.
Create a Tool in the StarterPack. Inside that Tool, add a LocalScript and a RemoteEvent. Let's name the RemoteEvent "AddPoint." The LocalScript is going to detect when the player clicks (using the Activated event) and then tell the server, "Hey, I just clicked, give me my coin."
Wait, why do we need a RemoteEvent? Why not just give the coin directly in the LocalScript? Well, if you do that, the player will see their coins go up on their screen, but the server won't know about it. It's like writing yourself a check for a million dollars; your bank (the server) isn't going to honor it just because you wrote it down. Plus, if you handle the logic only on the client side, hackers can easily give themselves infinite coins. We don't want that.
The Server Side Logic
Once the LocalScript fires that RemoteEvent, we need a script in ServerScriptService to listen for it. This script will be the one that actually adds the value to the player's leaderstats.
You'll use RemoteEvent.OnServerEvent. This part is pretty straightforward, but you should always add a little bit of a "cooldown" or "debounce." Without a cooldown, someone with a fast autoclicker could click 500 times a second and break your game's economy before you've even had lunch. A simple task.wait(0.1) or a boolean check is usually enough to keep things fair for everyone.
Building a Basic Shop
A simulator where you just click forever is kind of boring. You need a shop. This is where the "Basic" part of our roblox basic simulator script expands into something more interesting. You need a way to trade those coins for better multipliers or new tools.
For a beginner-friendly shop, you can start with a simple Part in the workspace. When a player touches it or interacts with a ProximityPrompt, a GUI pops up. Inside that GUI, you'll have a button that says "Buy 2x Multiplier - 100 Coins."
When the button is clicked, another RemoteEvent should fire. The server needs to check two things: 1. Does the player actually have 100 coins? 2. Do they already have the upgrade?
If they have the money, subtract the 100 coins from their leaderstats and change a variable (maybe a "Multiplier" value inside the player) to 2. From then on, whenever the player clicks their tool, the server script should check that multiplier value. Instead of adding 1 coin, it adds 1 * Multiplier. Now we're cooking.
Making the UI Look Decent
Let's be honest, the default Roblox UI isn't exactly winning any beauty pageants. To make your simulator feel "real," you should spend some time in the StarterGui. Add a ScreenGui, and inside that, a TextLabel that tracks the player's coins.
Instead of just relying on the leaderboard at the top right, having a big, colorful coin counter at the bottom of the screen makes a huge difference. You can use a simple script to update this label every time the coin value changes. Use the Changed event on your coin value—it's much more efficient than using a while true do loop that constantly checks the number every millisecond. Your game's performance will thank you.
Why Simulators Are Great for Learning
The reason many people start with a roblox basic simulator script is that it teaches you the fundamentals of "DataStores," "RemoteEvents," and "Client-Server Communication." These are the three pillars of almost every game on the platform.
Once you've mastered the basic clicking loop, you can start adding "Rebirths." Rebirths are just a way to reset a player's coins back to zero in exchange for a permanent multiplier. It's a clever way to keep people playing for longer. You just take the logic you've already built and add one more layer to it.
Common Pitfalls to Avoid
When you're starting out, it's really easy to get messy with your code. Here are a few things I've learned the hard way:
- Don't put everything in one script. It's tempting to just have one giant file that does everything, but six months from now, you won't remember which line handles the shop and which line handles the leaderboard. Keep things separate.
- Watch your naming conventions. If you name a variable
Cinstead ofCoins, you're going to get confused eventually. Be descriptive. - Don't forget the "end" statements. Lua is picky about its
if,then, andfunctionblocks. If you're getting a "red line" error in your script, it's almost always a missingendor a misspelled variable.
Final Thoughts
Building a game doesn't have to be this massive, Herculean task. If you can get a roblox basic simulator script working, you've already done more than most people. The beauty of Roblox is that you can start small. You don't need a high-end map or professional voice acting. You just need a loop that feels satisfying.
Once you have the clicking and the coins working, the sky is the limit. You can add pets that give bonuses, different zones that require a certain amount of strength to enter, or even a global leaderboard to spark some competition between players.
The most important thing is to just keep messing around with the code. Change a number, see what happens. Break things and then try to fix them. That's how everyone you see on the front page started. They didn't just wake up knowing how to script; they started exactly where you are, probably trying to figure out why their coins weren't showing up on the leaderboard. Stick with it, and before you know it, you'll be the one writing the scripts that other people are trying to learn from.