adv_rocketry-1.21.1-3.0.beta.jar is a release file of the Minecraft mod Advanced Rocketry 3 for NeoForge, made for Minecraft 1.21.1. It was published on August 19, 2026 and is 32 MB in size. For the full description, screenshots and every other version, visit the Advanced Rocketry 3 mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
