An ancient and wicked tower-like temple is home to the Shadow Priests located in Outworld, but is so high up that a blue sky can be seen. It is sometimes referred to simply as "The Tower" or the "Evil Monastery".
First appeared as an arena in Mortal Kombat II, then returned as a walkthrough area within Mortal Kombat: Shaolin Monks. This arena has returned in Mortal Kombat: Armageddon, renamed the "Evil Tower", featuring a previously unseen area where players can knock their opponents down a nearby flight of stairs to an outdoor section of the arena, featuring a death trap blue portal that players can utilize.
The Evil Monastery also appears in Mortal Kombat (2011). In this new version, the background constantly shifts between night and day, and the Evil Monastery itself is filled with its golden statues of robed skeletons holding swords across its chambers and even a sundial there.
- Originally, artist Tony Goskie had designed the floating monk in the Tower background in Mortal Kombat II. Ultimately, they were later removed. 
- In the first film Mortal Kombat, the Evil Tower itself is also featured as the rocky, yet gothic towering citadel in shape of two connected buildings (first one the tallest, the other one is the second and small) called the Black Tower which is presumably the Emperor's castle or thought to be, however the distinctively-shaped window appears behind the altar of a ruined temple in Outworld where Liu Kang fights Reptile.
- The Tower also made its appearance in Liu Kang's flash backs within the episode Skin Deep of the animated series Mortal Kombat: Defenders of the Realm back when inside the tower, he first defeated Shang Tsung and won the battle almost like in the Mortal Kombat movie, save for the fact that Shang Tsung fell on flat floor rather instead of spikes.
- In the Sega Genesis version, there is no Shadow Priest in the background.
- Originally, the Tower Stage actually had four big statues placed on both ends of it. Those probably got cut to save memory. Similar statues later appear in Mortal Kombat: Shaolin Monks before the battle with Reptile.