5.8.0.1-beta is a beta file of the Minecraft mod Insane's Survival Overhaul (aka IguanaTweaks Reborn) for NeoForge, made for Minecraft 1.21.1. It was published on August 16, 2026 and is 2 MB in size. Pre-release builds can contain bugs — back up your world before installing. For the full description, screenshots and every other version, visit the Insane's Survival Overhaul (aka IguanaTweaks Reborn) mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
