Outpost Zero Free Week

Outpost Zero is holding a free week on Steam, offering the chance to try this Windows base-building survival game for zero dollars. This update also notes the game is currently 30% off, and that the free week will culminate in the game's graduation from Early Access: "Starting now and until next Thursday, Outpost Zero is free to try and is 30% off! The Free Week is to help us test out a few updates as the game gears up to go into 1.0 at the end of the Free Week!" Here's a trailer showing off gameplay, and here are some details:
Outpost Zero blends the genres of Multiplayer Base Building Survival and Simulation games in a Sci-Fi universe.

You and your robotic crewmates were sent to this planet for one purpose - to prepare a working habitat for the future waves of human colonists eager to escape the dying earth. Gaiya's untold natural resources are a juicy target for interstellar big business. Healthy competition among competing corporations drive the dangerous expeditions. Will you succeed in establishing a profitable foothold on this mysterious world, or will the perils of Gaiya and the ruthless corporations out to exploit her natural resources be too much for you to handle?

Command. Colonize. Survive.