Anti-Cheat Toolkit
Protect what players earn. ACTk hardens the values in memory and the saves on disk, and it catches anyone moving the clock, so your leaderboard means something.
No client-side tool makes a game 100% cheat-proof, and ACTk doesn't claim to. It raises the cost of cheating far above what casual and semi-serious cheaters will pay. It stops the memory editors, save-file hacks, speedhacks and injectors that ruin most leaderboards. Against determined attackers, a server-authoritative game still needs server checks; ACTk covers the client half. If you're not sure where your game stands, the Anti-Cheat Audit maps it out.
Obscure / Detect / Verify
Obscure
Replace value types with encrypted ones that memory scanners can't find or freeze.
- Obscured value types (int, float, Vector3, …)
- Obscured Prefs, encrypted PlayerPrefs
- Obscured File & File Prefs, encrypted saves
Detect
Live detectors fire your callback the moment something looks off.
- Speed Hack Detector
- Time Cheating Detector
- WallHack Detector
- Injection Detector
Verify
Confirm the build and its origin are the ones you shipped.
- Code Hash Generator
- Android install-source validator
- Android screen-recording prevention
See a cheat get caught
Speed Hack DetectorCatches a game clock running faster than it should. You set the threshold and cool-down, so ordinary frame hitches never trip it. 
Time Cheating DetectorNotices when the system clock is changed to fake timers, energy refills and daily rewards. 
WallHack DetectorSpawns hidden triggers and checks for impossible visibility to catch see-through-walls tricks. 
Injection DetectorFlags foreign assemblies injected into your process at runtime. 
Obscured Cheating DetectorWatches the obscured types themselves and fires as soon as someone edits one in memory.
FAQ
Does Anti-Cheat Toolkit make my game 100% cheat-proof?
No, and no client-side tool can. ACTk raises the cost of cheating far above what casual and semi-serious cheaters will pay: memory editing, save tampering, speedhacks and injection stop being worth it. Competitive games should pair it with server-side checks.
Will it slow my game down?
Reading and writing obscured types adds very little overhead. You control how often detectors run and enable only what you need on each platform.
Does it work on mobile and IL2CPP?
Yes. It supports all platforms on Mono and IL2CPP. Android extras include install-source validation and screen-recording prevention.
Do I get the source code?
Full C# source is included, so you can read exactly what runs in your build and extend it.
ACTk vs server-side anti-cheat
| Anti-Cheat Toolkit | Server-authoritative | |
|---|---|---|
| Stops casual cheating | Yes | Yes |
| Works offline / single-player | Yes | No |
| Drop-in, no backend | Yes | No |
| Protects a competitive economy alone | Pair with server | Yes |
Most games aren't fully server-authoritative. ACTk protects the client, where the cheating actually happens.
In their words
Solid protection with easy integration
A well-built toolkit that adds an important security layer to any project. The setup is simple, the documentation is clear, and it provides peace of mind when working on games with in-app purchases.
Nice Anti-cheat toolkit!
Works great and as advertised. Documentation is also comprehensive and very helpful.
Worth it!
The features in the asset are absolutely insane and high quality. It's worth every penny and the support by the developer over both discord and the forums is more than amazing!
Ship it secure
ACTk has protected Unity games since 2013. You get full C# source, and I maintain the toolkit and answer support questions.
Get Anti-Cheat ToolkitSee the other Unity tools →Send a private message. No GitHub account needed.