Games like Grey Goo on Steam
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Age of Empires III: Definitive Edition
Age of Empires III: Definitive Edition offers players a trial of this historical single & multiplayer RTS experience. *Note: To unlock all features of the game please see the “Base Game” product.
Tempest Rising
Command distinct factions in a desperate struggle for power and resources in Tempest Rising - a classic RTS set on Earth after a nuclear war.
Sins of a Solar Empire II
Battle for galactic dominance in this real-time 4X strategy game with unrivaled scale! You’ll explore, expand, exploit, and exterminate through military force, diplomacy, trade, culture, influence, and other underhanded tactics.
Battlefleet Gothic: Armada
Battlefleet Gothic: Armada is the RTS videogame adaptation of Games Workshop’s classic tabletop game, pitting the Chaos, Imperium, Eldar, and Orks against each other in visceral space-battles.
Impossible Creatures Steam Edition
Impossible Creatures is a 3D RTS game that pits the player against an evil villain. Using Earth’s most formidable animals as building blocks, the player must create an army of genetically-altered mutant monsters in a titanic struggle to protect an unsuspecting world.
8-Bit Invaders!
8-Bit Invaders! is a fast-paced, retro Real-Time Strategy game for the PC. Control the military might of the Galactic Marine Corps or Invade with the devastating power of the Cranioids! Mine, Build, and Fight your way to victory! Conquering the Multiverse was never so easy.
Silica
Silica blends FPS and RTS in epic, photorealistic battles. Choose to fight on the ground or command from above as humans or aliens. Dive into thrilling multiplayer combat or master strategic command. Are you ready to survive and conquer?
Iron Harvest
A classic real-time strategy game with an epic single player campaign, multiplayer & coop, set in the alternate reality of 1920+
COH 2 - The Western Front Armies: US Forces
This individual army for COH2 allows you to access all existing COH2 maps in auto-match, and play against all other existing factions in multiplayer. It can also be obtained at a discount by acquiring The Western Front Armies multiplayer standalone, where it is bundled with the OKW army.
Age of Empires II: Definitive Edition
42 Civilizations, 229 Campaign Missions, Singleplayer, Co-Op, Multiplayer, In-Game Editor, Mods, Cross-play...It is good to be the king.
Army Men RTS
Army Men RTS brings you back to the days of staging battles with tiny plastic soldiers in your backyard...except these green soldiers carry out your every command!
AirMech
AirMech® Strike is a fast paced Action-RTS game that can be played solo, coop, or competitively online. Earn Kudos and Experience in battle and unlock a wide collection of AirMechs and Units while you practice the perfect strategy to emerge victorious!
Cossacks 3
Cossacks 3 is the return of RTS classics. Obtain resources, build cities and research technologies while taking command of great armies, crushing enemies in grand historical warfares on land and sea!
Battlefleet Gothic: Armada 2
Battlefleet Gothic: Armada 2 is the new real-time strategy game adapted from Games Workshop’s famous tabletop game that portrays the epic space battles of the Warhammer 40,000 universe.
Nexus - The Jupiter Incident
Ambitious megacorporations monopolize the conquest of space and the colonization of the solar system. At the very edge of the solar system, the companies make a discovery that will shift the technological advantage and upset the balance. And so a new conflict is born: "The Jupiter Incident."
There Came an Echo
There Came an Echo is a real-time strategy game in which the player assumes command of a small squadron, using an advanced voice recognition system to issue orders. It features a character-driven sci-fi narrative that stars Wil Wheaton, Ashly Burch, Laura Bailey, Yuri Lowenthal, and more!
CARNAGE OFFERING Tower Defense
The replicator robots are back! It's 2528. The machines are increasingly infecting the planets with genetically modified monsters. Challenge them and try to stop the onslaught. Upgrade buildings and heroes, mine resources, discover technology and fight to save humanity!
Age of Empires II (Retired)
Age of Empires II has been re-imagined in high definition. With the release of Age of Empires II: Definitive Edition, this product will not be updated further.
Natural Selection 2
A fast paced multiplayer shooter that pits aliens against humans in a strategic and action-packed struggle for survival!
Rusted Warfare - RTS
{{An RTS inspired by the classics of the past!}} Making up for it's subpar retro graphics with fun gameplay and modern multi-threaded tech enabling huge battles to run smooth... Featuring singleplayer challenges, skirmish, sandbox, 10-player multiplayer & workshop modding.
American Conquest
In American Conquest, Players set sail from Europe to discover new world and conquer its innumerable riches.
American Conquest: Fight Back
American Conquest: Fight Back is the sequel to American Conquest. The most significant events of that glorious time have found their way into this title.