nations-buildings-0.1-1.20.1-client.jar is a release file of the Minecraft mod Timo's Nation Addon: Technology & Policies for Forge, made for Minecraft 1.20.1. It was published on October 1, 2026 and is 1.1 MB in size. For the full description, screenshots and every other version, visit the Timo's Nation Addon: Technology & Policies mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.