Best Aliens 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 aliens games. For those who prefer not to search, check out lists of the most played, top deals and best free to play Aliens games on Steam.

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Warp Warp™ is a strategic stealth-action puzzler where gamers play as Zero, a loveable yet lethal, little orange alien with a big score to settle. Abducted by a villainous General from his home world and taken to an underwater research facility, Zero must plan his ultimate escape by relying on his arsenal of special abilities.

Price 9.99€
Rating 6.5
Release 21 Mar 2012
Unstoppable Gorg Defend the solar system from fearsome aliens by sending satellites into orbit in revolutionary tower defense action!

Price -91% 0.89€
Rating 7.4
Release 19 Jan 2012
Earth Defense Force: Insect Armageddon Thousands of giant insects and aliens once again ravage the earth, and only the Earth Defense Force can stop them.

Price -33% 6.75€
Rating 8.3
Release 14 Dec 2011
Galactic Civilizations® II: Ultimate Edition Get the complete GalCiv II saga including Galactic Civilizations II: Dread Lords, the expansion pack Dark Avatar, and the newest expansion pack Twilight of the Arnor!

Price 9.49€
Rating 7.4
Release 02 Dec 2011
Serious Sam 3: BFE Serious Sam 3: BFE is a prequel to the original indie fast action FPS and Game of the Year sensation - Serious Sam: The First Encounter!

Price -90% 3.02€
Rating 8.7
Release 22 Nov 2011
Sins of a Solar Empire: Trinity® In Sins of a Solar Empire: Trinity, you are the leader of a civilization embroiled in a galactic war, fighting for the survival of your entire race against relentless foes.

Price 9.49€
Rating 7.4
Release 16 Nov 2011
Alien Hallway Players measure stamina with a never-ending stream of green creatures within the borders of a special military mission.

Price -94% 0.34€
Rating 6.2
Release 19 Aug 2011
Quake 4 As part of the elite Rhino Squad, you must spearhead Earth’s military invasion of a hostile alien homeworld. But, in this desperate war for humanity’s survival against an unrelenting enemy, you may discover that the only way to defeat them...is to become one of them.

Price -81% 2.87€
Rating 8.4
Release 04 Aug 2011
Duke Nukem Forever The King arrives with an arsenal of over-the-top weapons, giant explosions and pure unadulterated fun!

Price -98% 0.48€
Rating 6.8
Release 09 Jun 2011
Red Faction®: Armageddon™ Red Faction: Armageddon Path to War includes 4 new missions, 2 unlockable items and 10 new achievements!

Price 19.99€
Rating 7.1
Release 06 Jun 2011
Anomaly: Warzone Earth Lead an armored squad through the perils of this reversed tower defense action-strategy game!

Price -95% 0.56€
Rating 8.4
Release 08 Apr 2011
Crysis 2 - Maximum Edition Aliens are decimating New York City, only you have the technology to survive. Be The Weapon.

Price -78% 6.77€
Rating 8.3
Release 22 Mar 2011
Revenge of the Titans The ultimate mash-up of Real-time Strategy and Tower Defense!

Price -52% 8.14€
Rating 7.8
Release 16 Mar 2011
Dead Space™ 2 Three years after the Necromorph infestation aboard the USS Ishimura, Isaac Clarke awakens from a coma, confused, disoriented, and on a space station called The Sprawl. Explore this world and its zero-g environments to discover the truth about the Unitology and its role in the Necromorph epidemic.

Price 19.99€
Rating 9.2
Release 27 Jan 2011
Alien Breed 3: Descent Experience the final explosive chapter in the Alien Breed series and uncover the horrifying truth surrounding the existence of the Breed. Launch discount good thru Nov. 24 10am PST.

Price -92% 0.89€
Rating 7.1
Release 17 Nov 2010
Alien Breed 2: Assault Can you survive the alien onslaught? Gamers across the world will now have a chance to play the next chapter in this high-budget, high-quality series.

Price -92% 0.89€
Rating 6.7
Release 22 Sep 2010
Alien Swarm Co-operative multiplayer game and complete code base available for free.

Price Free to play
Rating 9.3
Release 19 Jul 2010
Alien Breed: Impact Experience the explosive science fiction arcade-shooter that resurrects a much revered franchise in an epic single player and co-op multiplayer campaign.

Price 8.99€
Rating 7.2
Release 03 Jun 2010
Serious Sam HD: The Second Encounter Serious Sam HD: The Second Encounter is a visually upgraded and fully Steam supported remake of the original high-adrenaline single-play and 16-player co-operative arcade-action FPS and Gamespot's Game of the Month!

Price -64% 7.35€
Rating 8.6
Release 28 Apr 2010
Aliens vs. Predator™ Survive, hunt and prey in the deadly jungles and swamps in distinctly new and thrilling first person gameplay.

Price 14.99€
Rating 8.9
Release 16 Feb 2010
Aliens versus Predator Classic 2000 Aliens Versus Predator Classic 2000 features the Colonial Marine, Alien and Predator Campaigns and the frenetic single-player Skirmish mode from the original title: Alien Versus Predator Gold Edition, which was released to massive acclaim in 2000.

Price -83% 0.87€
Rating 8.4
Release 15 Jan 2010
Samorost 2 Samorost 2 tells a surreal story of a space gnome whose dog just got kidnapped by mischievous aliens. Set out on a short expedition to rescue the pup, deal with curious strangers and relax to the soothing music by Tomáš "Floex" Dvořák.

Price -79% 1.05€
Rating 8.3
Release 10 Dec 2009
Serious Sam HD: The First Encounter Serious Sam HD: The First Encounter is a visually upgraded and fully Steam supported remake version of the original high-adrenaline single-play and 16-player co-operative arcade-action FPS which was Gamespot's Game of the Year 2001 and which scored overall of 87% on Metacritic!

Price -83% 2.57€
Rating 9.1
Release 24 Nov 2009
The Dig® An asteroid the size of a small moon is on a crash course toward Earth. Once the wayward asteroid is nuked into a safe orbit, a trio conducts a routine examination of the rocky surface. What they uncover is anything but routine.

Price 5.89€
Rating 8.7
Release 08 Jul 2009