Start Minecraft, the map is in Singleplay mode.Drag extracted map folder which you have done in step 2 into saves folder.minecraft folder, then open saves folder. Type %appdata% into the Run program, then press Enter.Hold down Windows key, then press R key on the keyboard (or you can click Start, then type Run into search, after that click Run).Extract the file you have just downloaded.Around the build, there are an outpost and a village nearby, turning this map into a great survival base! Download this map from the links below and enjoy! Besides its outstanding structures, the fortress is full of smaller functional rooms with interesting secrets for you to find out. If you are into medieval structures like castles or fortresses, check this one out! This map features a compact medieval/ steampunk fortress built on the edge of a snowy mountain. Mountain Fortress Map (1.18.1) is a castle map created by Slash1239.