Invincible Incorporated needs a few libraries to run. Install these dependencies alongside the mod, drop everything in your mods folder, and launch.
Get Minecraft 1.21.1 NeoForge and run it once.
Download every required library below.
Move the .jar files into /mods.
Start Minecraft and become Invincible.
Minecraft 1.21.1 · NeoForge
The mod won't load without these. Match the version to your Minecraft version.
Hop into the Discord — the community and dev team will walk you through it.