Thorium Anti-Cheat
Thorium is a cloud anti-cheat. The plugin streams what happens on your server to our engine, and the engine simulates what every player should be able to do, every tick. When a player does something the game would not allow, you get a flag with the evidence attached.
The heavy work (physics simulation, packet inspection, combat analysis) runs on our hardware. Your TPS stays yours.
Requires a free Thorium account at thorium.ac. The plugin does nothing on its own.
What it detects
Over 50 checks across four areas, on every plan:
- Movement: speed, fly, nofall, timer, step, jesus, elytra, and full movement prediction
- Combat: reach, hit angle, multi-aura, autoclicker, velocity
- Packets: malformed, impossible and out-of-order packets
- World: scaffold, fast break, nuker, inventory move
Why cloud
- No TPS cost. The plugin captures and forwards. Nothing heavy runs in your tick loop.
- Updates without restarts. Detection lives on our side, so every improvement reaches your server without a jar update.
- Nothing on the player's machine. No client mod, no launcher check, no scanning.
- Network-wide context. A player hopping between your servers builds one history, not several.
Evidence, not just numbers
- Replays: 30 seconds before and after every flag, first or third person.
- Live spectate: watch a player from your browser while the engine points out anything suspicious.
- Discord: alerts with acknowledge, false positive and ban buttons, plus slash commands.
- Your escalation path: every check can stay flag-only until you trust it, then kick or ban on your terms.
Setup
- Create a network at thorium.ac and choose a plan (Free included).
- Add a server in the dashboard.
- Drop the jar in
plugins/, paste your network token and server name into the config, restart.
Paper, Spigot and Folia, 1.8 to current.
Pricing
Priced by peak concurrent players across your network, not by server count.
| Plan |
Peak players |
Price |
| Free |
20 |
$0 (flag-only, 1 backend) |
| Starter |
100 |
$6.99/mo |
| Network |
300 |
$19.99/mo |
| Pro |
1,000 |
$49.99/mo |
| Scale |
3,000 |
$129/mo |
Every paid plan starts with a 14-day free trial. Annual billing is 12 months for the price of 10.
Support: Discord