


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.
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.11
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as InertiaAntiCheat-1.1.1.2.jar — drop this file into the mods folder
- Download size: 183 KB
- Download link checked 27 Aug 2026 — working
These come from our own check of the pack file, not from the source page.