dog.jar is a release file of the Minecraft mod C418 - Dog, made for Minecraft 1.12.2. It was published on June 17, 2020 and is 1.5 MB in size. For the full description, screenshots and every other version, visit the C418 - Dog mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
