Mars is a dimension available in the Legends mod. First added in Superheroes Unlimited version 4.0, it is the fourth planet in our solar system and home of the Martian race, including Martian Manhunter. Mars can be accessed by the player if they fly to an altitude of 1500 or, from Legends 1.0, can be access via the Galactic Console.
The planet does not have an atmosphere, meaning the player will need to be wearing suitable protection to survive there. Characters that can survive on Mars including Superman, Thor, Green Lantern and Vision. The surface is primarily covered in Martian Rock. However, it is possible to find Martian Relics on and beneath the surface.