
Inertia Anti Cheat
Stop people from using unwanted mods on your server!
Screenshots


About this Mod
Inertia Anti Cheat


This was heavily inspired and named after https://www.curseforge.com/minecraft/mc-mods/kinetic-anti-cheat
How does it work?
When someone joins your server, the server mod will ask for the client's mod list.
If the client does not respond to this request (most likely because the client mod is not installed), the server will kick the player.
If the client mod responds, the server mod will check the mod list against a configurable blacklist/whitelist, or a hash for mod packs! It will kick the player if the mod list is not acceptable.
Is this foolproof?
Probably not. This mod was only designed to combat script kiddies, and does not use any special method to check the verity of the mod list. In short, it would take a bit of effort to bypass this, but it will stop most regular cheaters from joining.
At the moment, resource packs are not checked. This allows people to use advantageous resource packs like Xray resource packs on the server. You will need to install an anti-xray mod yourself.
Installation
Check here for more details.
Permissions
You are free to use this in modpacks or wherever you like!
I would appreciate it if you could give a link back to this page or the project's github.
Available Versions
How to Install Inertia Anti Cheat on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.11).
Install Mod
Open the mod browser in the dashboard and search for "Inertia Anti Cheat". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.11, 1.21.10, 1.21.9 (+25 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Inertia Anti Cheat server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.11). You can switch loaders with one click in the panel.
Is Inertia Anti Cheat compatible with fabric and quilt?
Inertia Anti Cheat officially supports fabric, quilt for Minecraft 1.21.11, 1.21.10, 1.21.9. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Inertia Anti Cheat – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Inertia Anti Cheat consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Rent Modded Server
Install Inertia Anti Cheat with just one click on your server.