The Nether Fortress is a location in the game Minecraft that can be found by following the instructions on the game’s website. To find it, you will need to have a copy of the game installed on your Xbox 360. The fortress is located in the bottom right-hand corner of the map, and it can be found by going down into the dark world and finding a hole in the ground. Once you have reached it, go inside and follow the instructions onscreen to find your way around.