concrete-1.21-4.0.0.jar is a release file of the Minecraft mod Concrete and Volcanoes for NeoForge, made for Minecraft 1.21.1. It was published on May 6, 2025 and is 0.3 MB in size. For the full description, screenshots and every other version, visit the Concrete and Volcanoes mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
