The Colonists
Build a new home for your team of robots as they begin a new life for themselves on a distant planet where they can fulfil their ultimate dream: to be human.
85% positive of 1,056 reviewsPlaying now: 23$24.99
Base Building · Building games to play together
246 Base Building · Building games your group can play together online, including The Colonists, Project 5: Sightseer, and Terraforming Mars.
All games: 24
Project 5: Sightseer
Open world multiplayer sandbox/RPG game. Explore, gather, build, research, and fight to protect what's yours -- by yourself or together with your friends.
72% positive of 551 reviewsPlaying now: 3Free
Terraforming Mars
The taming of the Red Planet has begun! Corporations are competing to transform Mars into a habitable planet by spending vast resources and using innovative technology to raise temperature, create a breathable atmosphere, and make oceans of water.
70% positive of 5,219 reviewsPlaying now: 339$19.99
Northgard: Definitive Edition
Northgard: Definitive Edition is a critically acclaimed real-time strategy game based on Norse mythology. Lead your clan, uncover the secrets of a mysterious newfound continent and defeat your enemies to conquer the Throne!
85% positive of 54,588 reviewsPlaying now: 983$9.79
Conan Unconquered
From the Command & Conquer veterans at Petroglyph comes the first ever survival RTS set in the savage world of Conan the Barbarian. Play solo or team up in multiplayer in Conan Unconquered’s action-packed co-op Mode where you build a shared stronghold and fend off the hordes together.
70% positive of 1,205 reviewsPlaying now: 5$19.99
TrenchesWIP
Multiplayer combined-arms first-person shooter set in an alternate history. Build and upgrade bases, harvest resources, construct defenses, purchase weapons and vehicles to overcome the enemy!
72% positive of 1,622 reviewsPlaying now: 1Free
Cadria Item Shop
Cadria Item Shop is a casual simulation game with RPG elements. Craft legendary items, hire heroes, and expand your shop to rebuild the town. Join a mighty guild, fight together in faction wars and send your heroes to explore the mystic lands of Cadria! All of this and much more awaits you!
71% positive of 1,603 reviewsPlaying now: 285Free
Dig or Die
Crash land on a hostile planet where you'll have to build the strongest defenses if you wish to live to escape from it. But be warned... this planet is merciless. Build strong, and smart; else physics may flood or destroy your only hopes of survival.
90% positive of 3,863 reviewsPlaying now: 5$11.99
Stationeers
Stationeers puts you in control of the construction and management of a space station to run by yourself or online with your friends. Complex atmospheric, electrical, manufacturing, agriculture, and gravitational systems require your thought and management at all times!
87% positive of 8,656 reviewsPlaying now: 415$34.99
Stronghold 2: Steam Edition
Tax, torture or treat your peasants! Rehabilitate criminals or sentence them to death? Decide as you enjoy jousting over a lavish banquet, all while under siege from the warmongering Lord Barclay.
88% positive of 4,935 reviewsPlaying now: 333$14.99
Forts
Unleash your creativity and strategic prowess in Forts, the exhilarating physics-based RTS! Design, construct, and customize imposing fortresses, bristling with devastating firepower, and blast your opponent’s buildings to rubble!
91% positive of 21,347 reviewsPlaying now: 471$14.99
SpellForce 3 Reforced
SpellForce 3 - The perfect blend between RTS and RPG!
75% positive of 5,808 reviewsPlaying now: 13$39.99
Screeps: World
Screeps: World is an open source MMO strategy sandbox game for programming enthusiasts. You control your colony by writing JavaScript code that operates 24/7 in the huge persistent online open world.
86% positive of 1,944 reviewsPlaying now: 48$19.99
Subsistence
Subsistence is a sandbox, first person, solo or co-op, PvE open-world survival game. Struggle through changing seasons to build a base, develop technology and gear-up in the hostile environment. Defend yourself from wildlife, the elements and AI hunters (who also build bases in the world).
72% positive of 12,636 reviewsPlaying now: 461$13.99
Ashes of the Singularity: Escalation
A massive-scale real-time strategy game where you command entire armies on a dynamic battlefield. Conquer multiple worlds across several single-player campaigns; or play with your friends in multiplayer combat.
76% positive of 2,713 reviewsPlaying now: 40$29.99
Force of Nature
Force of Nature is a Sandbox game that combines Action, Adventure, RPG, Strategy and Management genres
73% positive of 3,911 reviewsPlaying now: 4$7.99
Crashlands
Fight and tame alien beasts, craft resources into menacing weaponry, befriend the outlandish locals, and go toe-to-chin with a world-domineering maniac.
89% positive of 5,569 reviewsPlaying now: 14$5.24
Planetary Annihilation: TITANS
Wage war across entire solar systems with massive armies at your command. Annihilate enemy forces with world-shattering TITAN-class units, and demolish planets with massive super weapons!
84% positive of 11,426 reviewsPlaying now: 224$29.99
FortressCraft Evolved!
FortressCraft Evolved is a unique blend of Voxel Landscapes, Tower Defense, Crafting, Logistics, Exploration, Combat and Assembly lines. Players begin by crash-landing on a strange alien world, left with only a small handful of starting machines.
71% positive of 2,653 reviewsPlaying now: 17$12.99
Rising World
Rising World is a voxel based open-world sandbox game, featuring a procedurally generated world, playable in single and multi-player.
84% positive of 5,344 reviewsPlaying now: 100$14.99
PixelJunk Nom Nom Galaxy: Build a Soup Factory Together
Build a soup company with up to three online friends or one local partner in PixelJunk Nom Nom Galaxy. Explore alien planets, automate production, and compete with rival corporations for the market.
76% positive of 811 reviewsPlaying now: 4$9.99
DG2: Defense Grid 2 Makes Tower Defense a Shared Puzzle
Team up with one friend to defend power cores in DG2: Defense Grid 2. Choose fully cooperative Doubles or the more competitive Coordinated Defense, online or on one computer.
85% positive of 2,711 reviewsPlaying now: 52$9.99
Stronghold Crusader 2
Stronghold Crusader 2 is the long awaited sequel to the original castle sim. After 12 years Stronghold returns to the desert with a new 3D engine and powerful Havok Physics. Crusader 2 recaptures the original game’s addictive, fast-paced gameplay and authentic castle simulation.
73% positive of 12,678 reviewsPlaying now: 200$39.99
Stronghold Crusader HD (2012)
The highly anticipated sequel to the best-selling Stronghold, Stronghold Crusader HD throws you into historic battles and castle sieges from the Crusades with fiendish AI opponents, new units, 4 historical campaigns and over 100 unique skirmish missions.
97% positive of 17,639 reviewsPlaying now: 882$9.99