Strange but I don't think this game been mentioned before although I think it may have had a kickstarter a couple of years ago but their are a number of these Nasa like simulator games around so it may have been some thing else. Also it being made by Bohemia who are better known for the Arma series of games.

Any how it's on Steams early access and in the current Steam sale.

Website http://mars.takeonthegame.com/

Key features.

 

Survival/Multiplayer update

• Multiplayer
• 'Viral' Multiplayer save system (sends save to all connected)
• Pressurized buildings
• Drilling Rig, Atmospheric Processor, Materials Refinery
• 3 Astronaut suits (light, medium heavy)
• Inventory system (can take off suit, equip tools, eat food, and more)
• New vehicles (4-seat VTOL thruster-powered aircraft, Fork lift)
• The Moon location (Apollo 17 landing site)
• Many new building parts
• Survival elements (oxygen, food, water, vitamins, and more)
• Player sounds (grunts, breathing, death, and more)

• Expedition One
  • Take on the role of a marsonaut and establish the foundation for a human colony on Mars. Build your own habitat, drive unpressurized and pressurized manned vehicles, and manage the resources needed to keep you alive.

• Space Program Campaign
  • Explore the Red Planet from the perspective of a science-driven space agency. Become a rover operator, allowing you to control various fully simulated mobile rovers and stationary landers, and make your way through numerous scientific missions.

• Realistic Terrain
  • Travel across a vast, unforgiving Martian terrain with locations based on actual satellite data from famous locations such as Victoria Crater and Deimos.

• Economy
  • Increase your budget by completing missions and individual tasks. Develop new technologies, vehicles and instruments to tackle the challenges you meet along the way.

• Dynamic Destruction System
  • Break off cameras, robotic arms, even individual struts and wheels, all affecting the way your vehicle handles.

• Content Creation
  • Create your own scenarios and share them on the Steam Workshop, or just play around with whatever you wish in this limitless, free-form mode. Dive into Take On Mars’ powerful Workbench editing suite to develop new terrains, addons and total modifications.