This adds a new dungeon to the game. Why would you want it? The walls drop or can be smelted into slimeballs, the mob in there drops slimeballs and the chests can contain slimeballs.
- Download and install Minecraft Forge.
- Download the mod.
- Go to %appdata%.
- Go to .minecraft/mods folder.
- If the “mods” folder does not exist you can create one.
- Drag and drop the downloaded jar (zip) file into it.
- Enjoy the mod.