You've probably seen your fair share of exploiters if you've spent any time developing, which is why having a solid roblox anti cheat script template is such a lifesaver for keeping your game fair. It's honestly one of the most frustrating parts of being a developer on the platform. You spend weeks, maybe months, building out a cool world and balancing the mechanics, only for some kid with a downloaded executioner to fly through walls and ruin the experience for everyone else.
If you don't have a plan to stop them, your player retention is going to tank. Nobody wants to play a competitive game where one person is teleporting around the map or giving themselves infinite money. But here's the thing: you don't need to be a cybersecurity expert to protect your game. Using a template as a starting point is a great way to handle the "low-hanging fruit" of exploits.
Why You Need a Custom Framework
A lot of people just go to the toolbox, search for "anti cheat," and drag the first thing they see into their game. I'd really advise against that. Most of those public scripts are either outdated, full of backdoors, or—even worse—they're so well-known that the exploit makers have already built workarounds for them.
When you create your own roblox anti cheat script template, you're building something that's unique to your game's specific needs. You don't need to overcomplicate it. You just need a system that checks for impossible behavior. The goal isn't to stop every single hacker in existence (that's literally impossible), but to make it so difficult and annoying for them that they just go find a different game to mess with.
The Golden Rule: Never Trust the Client
If you take away nothing else from this, remember this: the client is a liar. In Roblox terms, the "client" is the player's computer, and the "server" is the computer Roblox runs to host the game.
Exploiters have full control over their own client. They can change their walk speed, they can delete walls on their screen, and they can fire RemoteEvents whenever they want. Your roblox anti cheat script template should live almost entirely on the server. If you put your anti-cheat logic in a LocalScript, an exploiter can just find it and disable it with one line of code. It's like putting a lock on a door but giving the burglar the key.
Monitoring Movement on the Server
One of the most common cheats is speed hacking. In your template, you'll want a loop that periodically checks how far a player has moved in a certain amount of time.
Think about it this way: if a player was at Point A one second ago, and now they're 500 studs away at Point B, they definitely didn't walk there. Even with the highest default walk speed, that's physically impossible. Your script should calculate the distance between those two points using (Position1 - Position2).Magnitude. If that distance is higher than your maximum allowed speed (plus a little extra for lag), you've caught a speed hacker.
Dealing with Teleportation
Teleporting is basically just a more extreme version of speed hacking. In your roblox anti cheat script template, you can use the same distance-checking logic to catch people "blinking" across the map.
A little tip, though: be careful with how you handle this. Sometimes players genuinely teleport because of a game mechanic, like a portal or a respawn point. You need to make sure your script "whitelists" these movements. You can do this by setting a boolean (a true/false value) on the player like IsTeleporting = true right before the game moves them, and then setting it back to false a second later.
Handling False Positives
This is where most beginners mess up. If your anti-cheat is too strict, you're going to end up kicking players who just have a bad internet connection. We've all been there—your ping spikes to 500ms, and suddenly your character is rubber-banding all over the place.
If your roblox anti cheat script template immediately bans anyone who moves too fast, you're going to lose a lot of innocent players. Instead of a ban, try "rubber-banding" them back to their last known good position. If they fail the check five or six times in a row within a minute, then you can consider a kick. Banning should usually be a last resort or something handled by a human moderator.
Securing Your RemoteEvents
This is a huge one. If your game has a shop where you click a button to buy a sword, that button probably fires a RemoteEvent. An exploiter doesn't need to click the button; they can just write a script that fires that event 10,000 times a second.
Your roblox anti cheat script template should include server-side validation for every single event. If a player fires the BuyItem event, the server should check: 1. Does the player actually have enough money? 2. Are they close enough to the shop NPC to actually be talking to them? 3. Has it been at least a half-second since they last bought something? (Rate limiting).
If the server doesn't check these things, your game's economy will be destroyed in minutes.
Detecting Noclip and Flight
Noclipping is when players walk through walls by disabling their character's collisions. Detecting this can be a bit tricky for performance, but a good way to do it is using Raycasting.
In your template, you can occasionally fire a "ray" between the player's previous position and their current position. If that ray hits a wall that's supposed to be solid, it means the player just moved through an object. For flight, you can check if the player has been "falling" or "in the air" for an unrealistic amount of time without touching a floor part. Just remember to account for things like jump pads or high-gravity areas!
Performance Concerns
You might be tempted to check every player every single frame, but don't do that. If you have 50 players in a server and you're running complex math 60 times a second for each of them, your server is going to lag into oblivion.
A good roblox anti cheat script template finds a balance. Checking movement every 0.5 or 1 second is usually plenty. Exploiters might get a tiny advantage for a split second, but they'll be caught almost immediately, and your server won't catch fire in the process.
Keep It Under Wraps
One final piece of advice: don't tell your players exactly how your anti-cheat works. Don't put "Anti-Cheat Loaded" in the chat for everyone to see. The more an exploiter knows about your detection methods, the easier it is for them to bypass them. Keep your logs private, and make your "Kicked" messages vague, like "A connection error occurred" or "Unexpected client behavior."
Building a roblox anti cheat script template is an ongoing process. You'll likely find new ways people are breaking your game every week. But if you start with a solid foundation—focusing on server-side checks and never trusting the data coming from the player—you're already ahead of 90% of the games on the platform. It's all about making your game a "hard target." Most exploiters are just looking for an easy win; if you make them work for it, they'll usually just give up and move on.