: Allows you to expand your colony into Martian caves and lava tubes.
: A major update added the ability to travel via bus to new locations like Phobos City , Pac Street , and Moloch Headquarters . Mars Underground
: A strategy for human exploration that emphasizes "living off the land" (In-Situ Resource Utilization) to make the mission affordable. : Allows you to expand your colony into
: Features expert insights on using Martian lava tubes as natural radiation shields for future human habitats. Mars Underground
: Works in tandem with underground play, allowing you to fetch exotic minerals needed for advanced "Wonders". 3. The Mars Underground (Documentary)