simpletomb-1.20.1-1.3.0.jar is a release file of the Minecraft mod Simple Tomb for NeoForge, Forge, made for Minecraft 1.20.1. It was published on July 17, 2023 and is 0.3 MB in size. For the full description, screenshots and every other version, visit the Simple Tomb mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.