The Humble Bundle store, popular for its low-priced and charity-based game bundles, is currently running a 72-hour giveaway event for sci-fi city builder Surviving Mars Deluxe Edition (Windows, Linux & Mac)), to be claimed on HB ASAP or before June 14 at 10am PT, courtesy of Humble Bundle and Paradox Interactive.

How to unlock Surviving Mars

You just need to go to the Humble Bundle’s page to claim the key by pressing the big green “Get the Game” button. Then follow the instructions (such as creating an HB account if you don’t have one, and linking a GOG account), to get the key link sent to your email address. Once you have your own game key, head over to GOG to redeem it.
Note that claiming the game also implies that you subscribe to HB’s newsletter (box ticked by default). This promotion is available until June 14 at 10am PT.

About Surviving Mars

Surviving Mars is a sci-fi city builder all about colonizing Mars and surviving the process. Choose a space agency for resources and financial support before determining a location for your colony. Build domes and infrastructure, research new possibilities and utilize drones to unlock more elaborate ways to shape and expand your settlement. Cultivate your own food, mine minerals or just relax by the bar after a hard day’s work. Most important of all, though, is keeping your colonists alive. Not an easy task on a strange new planet.