Indie Sci-Fi specialist Trek-Industries is proud to offer two of their popular STEAM™ games as F2P downloads for a limited time in a special promotion with great offers and incentives. For a period of two weeks, Sci-Fi classics ORION: Prelude and Guardians Of ORION can be yours to play and enjoy.
https://www.youtube.com/watch?v=Qs-0CD_oZW4&feature=youtu.be
ORION: Prelude is F2P between March 13th and March 20th. Prelude is an indie Sci-Fi shooter (FPS/TPS) that seamlessly blends together incredible visuals and addictive combat. It puts you and your friends together into intense, cinematic battles using some of the most incredible weaponry and amazing vehicles in which you must work or compete against one another to accomplish mission objectives, explore giant worlds and survive the devastating Dinosaur Horde.
http://store.steampowered.com/app/104900/
Guardians Of ORION is F2P between March 20th and March 27th. Guardians of Orion is a Sci-Fi MMORPG Shooter featuring Cooperative, Competitive, Social, Exploration, and Dog-fighting Gameplay!
http://store.steampowered.com/app/407840/