Games like Terraforming Mars on Steam
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Galactic Civilizations IV
Take command of a civilization that has just achieved faster-than-light travel in Galactic Civilizations IV, the newest entry in the award-winning space 4X strategy game series. Explore the galaxy, colonize worlds, shape cultures, make alliances, fight wars and pioneer new technologies.
Pike and Shot : Campaigns
The ultimate wargame set in the age of Pike and Shot is back. You are now in full charge of your nation’s armies, throughout a long campaign in the struggle for dominance.
Supreme Commander
For a thousand years, three opposing forces have waged war for what they believe is true. There can be no room for compromise: their way is the only way. Dubbed The Infinite War, this devastating conflict has taken its toll on a once-peaceful galaxy and has only served to deepen the hatred between the factions.
Space Rangers HD: A War Apart
Space adventure, open world RPG, strategy, arcade, quest and more!
For The King II
Battle against Fahrul's tyrannical Queen alone or as a party of four players in the sequel to For The King, the massively popular turn-based roguelite tabletop RPG. Will you unravel the once beloved Queen's terrible secret?
Pixel Puzzles Ultimate Jigsaw Puzzles
The Number 1 Jigsaw Puzzle Game.
Deep Space Battle Simulator
Two teams of players control their capital ship in an epic battle. Customize your ship, control its movement, weapons, and energy distribution or go to one of the hangars to join the battle in a smaller fighter!
dotAGE
Village elder, help us! The Apocalypse is approaching, and we need your guidance to survive. Assign your workers and build a thriving village against the pending doom. DotAGE is the merciless survival roguelite turn-based city builder. Will you fulfill the Prophecy?
Istrolid
In Istrolid you design your own unique spaceships from a large number of parts to fit your strategy and play style. With no set units or factions you are free to create a fleet where each ship has its own balanced strengths and weaknesses, from basic fighters and bombers to hulking battleships and speedy destroyers.
X-COM: UFO Defense
You are in control of X-COM: an organization formed by the world's governments to fight the ever-increasing alien menace.
Age of Wonders: Planetfall
Age of Wonders: Planetfall is the new strategy game from Triumph Studios, creators of the critically acclaimed Age of Wonders series, bringing all the exciting tactical turn-based combat and in-depth empire building of its predecessors to space in an all-new, sci-fi setting.
AI War: Fleet Command
"You are outgunned. You are massively outnumbered. You must win." These are your orders. Humanity has already fought its war against the machines -- and lost. AI death squads stand watch over every planet and every wormhole, the few remaining human settlements are held captive in orbiting bubbles, and the AIs have turned their...
Startopia
A once thriving network of space stations and planets have been left lifeless, redundant scars of the apocalypse. Into this age of darkness comes light. You will lead the way in rebuilding the network of space stations to a standard accepted by the individual alien races, attracting them to harness their expertise and research new...
Planetbase
Guide a group of space settlers trying to establish a base on a remote planet. Grow food, collect energy, mine resources, survive disasters and build a self-sufficient colony in a harsh and unforgiving environment.
Stars in Shadow
Stars in Shadow is a turn-based 4X strategy game and a vivid tribute to the genre classics. Compete with alien factions to explore and colonize nearby starsystems, build fleets to defend against rivals, negotiate or conquer them. Win by unifying the galaxy, through diplomacy or force.
Supreme Commander 2
Includes 47 Steam achievements, leaderboards, and stats!
Gratuitous Space Battles
Who needs backstory? Who needs resource-gathering? Diplomacy is so last year. Gratuitous Space Battles cuts right to the chase of sci-fi strategy games, and deals with large, completely unjustified space battles between huge opposing space fleets.
Worms Armageddon
Those intrepid invertebrates return with a vengeance in the much-loved Worms™ Armageddon. It’s a whole new can of worms! It’s hilarious fun that you can enjoy on your own or with all your friends.
Heroes of Might & Magic V: Hammers of Fate
Take part in a thrilling new adventure in the world of Ashan with the Hammers of Fate expansion. Discover uncharted territories and experience new ways of playing Heroes of Might & Magic V. Introducing a brand-new Dwarves faction, made up of heroic warriors and rune magic adepts who stalk the deepest mountains and most hostile regions of...
Halo Wars: Definitive Edition
Halo Wars: Definitive Edition is an enhanced version of the real-time strategy classic, Halo Wars, updated to run natively on PC. Halo Wars: Definitive Edition includes improved graphics, new achievements and all of the DLC created for the landmark real-time strategy game.
Armello
Armello is a grim fairy-tale board game come to life, with every match combining deep, tactical card play, rich tabletop strategy and RPG elements. Leverage subterfuge, spells and careful strategy to wrangle control of the game's chaotic odds as you quest for the throne.
Ascension to the Throne
Ascension to the Throne is a turn-based strategy game with RPG elements. In a vast fantasy world the hero will have to pass many tests on his way to victory. Enemies seek to stop players from regaining power and taking revenge. Gain new friends to aid you in reclaiming the throne.
Hunter Roulette
Ladies and gentlemen, welcome to the underground survivor's showdown! All you need is a locked-and-loaded gun and the guts to stare death in the face to have the time of your life. Ready or not, this isn’t just any gamble—it’s your one shot at survival and rebirth. The hunt starts now！Good luck!
EarthX
EarthX is a rocket company management game. Go from launching small rockets on Earth to eventually building a colony on Mars. Create your own Internet constellation, develop new technologies, supply the International Space Station and terraform Mars!