unidirectionalblock-1.0.0.jar is a release file of the Minecraft mod One Way Invisible Block for Forge, made for Minecraft 1.20.2, 1.20.5, 1.20.1, 1.20.6, 1.20.4, 1.20.3. It was published on June 10, 2026 and is 0 MB in size. For the full description, screenshots and every other version, visit the One Way Invisible Block mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
