ModsJava
Mendelevium
Lags out your game's TPS. Free Minecraft Java mod for 1.20.1.
⬇ Download on Modrinth
DO NOT USE ON WORLDS YOU CARE ABOUT! IT WILL CORRUPT!
A mod made as a joke to lag out your game. Based off Sodium and simialar mods.
There is two new items you get, the 
lag detector and three 
lag resets. Your game will extensively lag and crash unless you use one of these to reset the varible.
The crafting recipe for Lag Reset item.
The Glitch tornado structure.
My inventory after looting ~7 Glitch Tornados + Starting Inventory.
Verified by MCModsHub
- Ships as mendelevium-1.20.1.jar — drop this file into the mods folder
- Download size: 72 KB
- Download link checked 6 Sept 2026 — working
These come from our own check of the pack file, not from the source page.