Roblox kick script implementation is one of those essential skills you'll need to pick up if you're serious about developing games on the platform. Let's be honest: while the Roblox community is mostly great, every game eventually attracts players who just want to cause trouble. Whether it's someone exploiting, being toxic in the chat, or just breaking the rules you've spent hours setting up, you need a way to show them the door.
In this guide, we're going to dive into how these scripts work, why you should always handle them on the server side, and how to customize the experience so you aren't just a "mean dev," but a smart moderator.
The Bare Bones: How Kicking Actually Works
At its simplest level, kicking a player isn't some complex ritual. Roblox's API (Application Programming Interface) gives us a very specific tool for this called the :Kick() method. This is a function that belongs to the Player object.
If you were to look at a super basic version of the code, it looks something like this:
lua game.Players.PlayerAdded:Connect(function(player) -- This is just an example; don't actually kick everyone! player:Kick("You have been removed from the game.") end)
Now, obviously, you don't want to kick every single person who joins. That would make for a pretty lonely game. But notice that player:Kick() takes a "string" (which is just a fancy word for text) inside the parentheses. This is the message the player sees when they get disconnected. If you leave it blank, they just get a generic "You have been kicked" message, which is a bit boring.
Why You Must Stay on the Server Side
Here is the most important rule of Roblox development: Never trust the client.
If you put your roblox kick script inside a LocalScript (the kind of script that runs on the player's computer), an exploiter can easily disable it. Imagine trying to lock a door, but the lock is on the outside where the burglar can just unscrew it. That's what a client-side kick script is like.
To actually make it stick, your logic has to live in a Script (a Server Script) inside ServerScriptService. When the server decides someone needs to go, it forcibly disconnects them. The player's computer has no say in the matter. They can try to delete their local scripts all they want, but the server is the ultimate authority.
Building an Admin-Only Kick Command
Most developers want a way to kick people manually while they're playing. You don't want to have to open Roblox Studio and change the code every time a troll shows up. You want to be able to type something in the chat like :kick NoobMaster99 and have them disappear.
To do this, you'll need to set up a listener that checks what people are typing. You also need to make sure only you (or your mods) can use the command. You wouldn't want a random player kicking the owner of the game!
Setting Up the Admin List
You can create a simple list of User IDs that are allowed to use the command. Using User IDs is better than using usernames because players can change their names, but their ID stays the same forever.
```lua local admins = {1234567, 8901234} -- Put your UserID here
game.Players.PlayerAdded:Connect(function(player) player.Chatted:Connect(function(message) -- Check if the player is an admin local isAdmin = false for _, id in pairs(admins) do if player.UserId == id then isAdmin = true break end end
if isAdmin then -- Logic to parse the message and kick the target end end) end) ```
Using RemoteEvents for UI-Based Kicking
If you're building a fancy admin panel with buttons and text boxes, you're going to need RemoteEvents. Since the button is on the player's screen (the client), but the kick has to happen on the server, the RemoteEvent acts as a bridge.
- The Client: The admin types a name into a box and clicks "Kick."
- The Bridge: The LocalScript "fires" a RemoteEvent to the server.
- The Server: The ServerScript receives the request, checks if the person who sent it is actually an admin, and then executes the kick.
Safety tip: Always re-verify the admin's identity on the server. Don't just assume that because a RemoteEvent was fired, it's legitimate. Hackers can fire RemoteEvents manually. If you don't check permissions on the server side, a hacker could use your own admin panel to kick everyone in the server!
Automating the Process: The Anti-Cheat Kick
Sometimes, you want your roblox kick script to work even when you aren't there. This is where automated moderation comes in. Maybe you have a script that detects if a player is moving too fast (speed hacking) or if they're flying.
If your anti-cheat script detects something fishy, it can call the kick function immediately. However, you should be careful here. "False positives" are a nightmare. If a player lags really badly and the script thinks they're teleporting, kicking them will just frustrate a legitimate fan. Many devs prefer to "rubberband" players back to their original position a few times before resorting to a full-on kick.
Customizing the Kick Message
If you're going to kick someone, you might as well be clear about why. A good roblox kick script should provide context.
Instead of: player:Kick("Get out!")
Try something more professional or helpful: player:Kick("\n [Moderation] \n Reason: Exploiting \n Appeal at: [Your Discord/Group]")
Using \n creates a new line, making the message look much cleaner and easier to read on the player's screen. It adds a level of polish to your game that makes it feel more "official."
The Difference Between Kicking and Banning
It's worth noting that a kick is just a one-time thing. The player can click "Reconnect" and come right back in. If you have a persistent harasser, a kick isn't enough; you need a ban script.
Banning usually involves the DataStoreService. When you "ban" someone, you save their UserID to a database. Every time a player joins, your script checks that database. If their ID is on the "naughty list," the script immediately triggers the kick function before they even finish loading.
Recently, Roblox introduced the BanAsync API, which makes this even easier and more robust, but the core concept remains the same: it's just a roblox kick script that triggers automatically every time a specific person tries to enter.
Common Mistakes to Avoid
One big mistake I see new developers make is trying to kick players by name without checking if the player actually exists. If you try to run game.Players["NotARealUser"]:Kick(), the script will error and potentially crash other parts of your code.
Always use FindFirstChild to make sure the person is still in the server before you try to kick them. Players might leave right as you're about to kick them, and you don't want your script breaking because it's looking for a "ghost."
Another thing: don't over-use the kick tool. If your game is too strict, you'll kill the vibe. Reserve the kick script for people who are actually ruining the experience for others.
Wrapping Up
At the end of the day, a roblox kick script is just a tool in your toolbox. Like a hammer, it can be used to build something great (a safe, clean community) or it can be used to break things (if you use it unfairly).
Start with a simple server-side script, move on to admin commands as your game grows, and always prioritize security by keeping your logic away from the client. Once you've mastered the basics of Player:Kick(), you'll have much more control over the environment you've worked so hard to create.
Happy coding, and may your servers stay troll-free!