[PC] Free - Genesis Alpha One Deluxe Edition @ GOG

To claim the freebie:
Visit the GOG homepage and click "Add to library" in the Genesis Alpha One Deluxe Edition giveaway banner. (You may have to scroll the page to find it.) Note: This will subscribe you to GOG marketing emails.

About the game:

In a near future ravaged by wars, corrupt regimes and devastating pollution, influential corporations have created the Genesis program in a last-ditch attempt to save humanity.

As the Captain of a Genesis starship, you journey into uncharted space on the ultimate mission. Build and manage a space vessel, farm resources, deal with terrifying alien infestations, clone creatures and explore a vast, randomly generated universe.

For reviews, system requirements, etc:
Refer to the game's pages on GOG (3.8/5), Steam (Mostly Positive).