A roblox class selection gui script is basically the heartbeat of any decent RPG or team-based fighter you'll find on the platform. It's that first moment of interaction where a player decides who they want to be—a tanky warrior, a glass-cannon mage, or maybe a sneaky rogue. If you've ever tried to build one and ended up with a mess of broken buttons and players who can't actually spawn with their gear, don't sweat it. We've all been there.
Setting this up isn't just about making a pretty menu; it's about the "handshake" between what the player clicks on their screen (the client) and what the game actually does behind the scenes (the server). Let's break down how to build a functional, smooth system that doesn't just look good but actually works every single time.
Starting with the Visuals (The ScreenGui)
Before we touch a single line of code, we need something for the player to look at. In Roblox Studio, you'll head over to StarterGui and drop in a ScreenGui. Let's call it "ClassSelection." Inside that, you'll want a Frame to act as your main menu.
Don't just leave it as a gray box. Use some UICorner objects to round the edges and maybe a UIGradient to give it some life. Inside this frame, you're going to need buttons. Lots of them—or at least one for each class you're planning to offer. Name them clearly, like "WarriorButton" or "MageButton."
One tip I've learned the hard way: always use Scale instead of Offset for your UI sizes and positions. If you use Offset, your beautiful menu might look perfect on your 27-inch monitor but will be completely off-screen for someone playing on a phone. Scale keeps things proportional, which is a lifesaver for cross-platform play.
The Secret Sauce: RemoteEvents
This is where most beginners trip up. You can't just give a player a sword inside a local script. If you do, the player might see the sword in their hand, but to everyone else in the game, they're just standing there swinging their fists. Or worse, the sword won't work at all because the server doesn't know it exists.
To bridge this gap, you need a RemoteEvent. Head over to ReplicatedStorage, create a folder called "Events," and pop a RemoteEvent inside it. Name it something like "ClassSelected." This is the "phone line" that your roblox class selection gui script will use to tell the server, "Hey, this guy chose the Mage class, give him some magic staff."
Writing the LocalScript
Now, let's get into the actual roblox class selection gui script logic on the client side. Inside your "ClassSelection" ScreenGui, you'll want a LocalScript. This script's job is simple: listen for clicks and tell the server what happened.
You'll want to reference your buttons and the RemoteEvent first. When a player clicks the "Warrior" button, the script should fire that RemoteEvent and pass along a string, like "Warrior."
It looks something like this: You connect a MouseButton1Click function to your button. Inside that function, you call FireServer() on your RemoteEvent. It's also a good idea to make the GUI disappear once a selection is made. You can just set the frame's Visible property to false or, if you want to be fancy, use TweenService to fade it out. It feels much more professional that way.
Handling the Logic on the Server
The server is the boss. It's the one that actually hands out the items and changes player stats. You'll want a Script (a regular one, not a local one) inside ServerScriptService.
This script will listen for whenever that "ClassSelected" event is fired. When it hears the signal, it looks at the name of the player who fired it and the class they chose. This is where you use an if or elseif chain—or better yet, a switch-like table—to determine what the player gets.
If they picked "Warrior," you might want to clone a sword tool from ServerStorage and parent it to the player's Backpack. You might also want to increase their MaxHealth to 150 to give them that "tank" feel. If they picked "Mage," maybe you give them a staff and set their WalkSpeed a bit higher so they can kite enemies.
Organizing Your Class Data
As your game grows, you don't want a 500-line server script full of "if" statements. It gets messy fast. A better way to handle a roblox class selection gui script is to use a ModuleScript.
You can create a ModuleScript in ReplicatedStorage called "ClassData." In there, you can store a table that defines what each class gets. For example, "Warrior" could have a list of tools, a specific health value, and even a custom shirt ID. The server script then just looks at this table, finds the "Warrior" entry, and applies everything listed there. It makes adding a new class as easy as adding one more entry to a list, rather than rewriting your entire logic.
Adding Polish and Feedback
A UI that just disappears is fine, but a UI that reacts is better. When a player hovers over the "Mage" button, maybe the button grows slightly or changes color. When they click it, play a little "click" sound. These small details are what separate a "meh" game from one that feels high-quality.
You should also consider a "Confirmation" step. There's nothing more annoying than accidentally clicking the wrong class and being stuck with it until you reset. A simple "Are you sure?" pop-up can save your players a lot of frustration.
Validating the Choice (The Security Bit)
Here's a pro tip: never trust the client. If your RemoteEvent just accepts a "Health" value from the client, a hacker could send a signal saying they have 999,999 health.
When using your roblox class selection gui script, the server should be the one deciding the stats. The client only sends the name of the class. The server then checks its own internal list to see what that class is allowed to have. This keeps things fair and prevents people from ruining the balance of your game with simple exploits.
Common Pitfalls to Avoid
One huge mistake I see often is scripts trying to find the player's character before it has actually loaded. If your script runs the second a player joins, but their character hasn't hit the "Spawn" point yet, the script might error out when trying to give them items.
Always use player.CharacterAdded:Wait() if you're doing something that involves the physical character model. Also, make sure your tools are actually in ServerStorage or ReplicatedStorage. If they're just sitting in the Workspace, anyone can grab them, or they might get cleaned up by a script.
Wrapping It All Up
Building a roblox class selection gui script is really a rite of passage for Roblox devs. It teaches you about UI design, client-server communication, and data management all at once. Once you have the basics down—button clicks, RemoteEvents, and server-side distribution—you can get as creative as you want.
Maybe you add a preview window where the player can see their character wearing the class armor before they pick it. Or maybe you lock certain classes behind levels or gamepasses. The sky's the limit once you've got the foundation solid. Just keep testing, keep tweaking, and don't be afraid to break things—that's usually where the best learning happens anyway. Happy scripting!