Discounted Sci-fi Games on Steam

Unlike generic lists, our strategy game recommendations use a rigorous analysis of Steam user reviews to identify and feature only the best, community-validated sci-fi games. For those who prefer not to search, check out lists of the most played, top deals and best free to play Sci-fi games on Steam.

Filters & Lists
Uplink Uplink lets you play as a freelance hacker tackling risky contracts for corporations. Break into systems, steal data, sabotage rivals, and upgrade your gear. Support factions or go rogue in this immersive, strategy-driven hacking simulation game where your choices shape the outcome.

Price -92% 1.00€
Rating 8.7
Release 23 Aug 2006
X3: Reunion X3: Reunion continues the epic space saga, blending deep space trading and intense real-time combat. Explore a vast universe, establish your empire, and shape the new frontier. With enhanced graphics and intricate economies, it's a journey of strategy, simulation, and interstellar intrigue.

Price -89% 1.13€
Rating 6.9
Release 21 Jul 2006
X2: The Threat X²: The Threat is of a new generation of space simulator games, you play the role of Julian Gardna who continues the story set by X: Beyond The Frontier. The updated graphics engine gives the universe a fresher feel with newly designed ships and stations adding to the complexity of the universe.

Price -66% 1.71€
Rating 7.8
Release 21 Jul 2006
Shadowgrounds Shadowgrounds breathes fresh air into the action genre with explosive combat sequences, an innovative weapon upgrade system, and an intriguing storyline. The adrenaline-pumping, top-down gameplay and audiovisual fireworks set the scene for this new action experience which also includes single computer (split keyboard or joystick) co-op...

Price -85% 0.74€
Rating 7.8
Release 08 May 2006
Earth 2160 After the destruction of the EARTH in 2150, the leaders of the Eurasian Dynasty escaped on board an evacuation fleet. Now they are fighting for the survival of the human species. Their base is one large building comprising of smaller variable parts.

Price -98% 0.29€
Rating 6.8
Release 01 Apr 2006
Darwinia Darwinia blends real-time strategy, action, and puzzles with a unique gesture-based control system. Save the Darwinians, battle viruses, and restore order in a retro-inspired digital world. Winner of multiple prestigious  awards, including the Seumas McNally Grand Prize at IGF 2006.

Price -96% 0.56€
Rating 7.6
Release 01 Dec 2005
Warhammer 40,000: Dawn of War II: Retribution Command any of the six unique factions in the next standalone expansion of the critically acclaimed Dawn of War real-time strategy franchise. Choose to build a massive army or lead a small squad of elite heroes into battle and experience a single player campaign customized to your favorite race.

Price -74% 7.64€
Rating 8.8
Release -