Building · Singleplayer games to play together

345 Building · Singleplayer games your group can play together online, including Project Zomboid, Stronghold Crusader 2, and Contraption Maker.

All games: 24

Project Zomboid Makes Survival a Shared Story

Explore, build, and survive together in Project Zomboid, with online servers for larger groups or local split-screen for up to four players.

93% positive of 372,115 reviewsPlaying now: 42,113$24.99

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

The LEGO® Movie - Videogame

Join Emmet and an unlikely group of resistance fighters in their heroic quest to thwart Lord Business’ evil plans—a mission that Emmet is hopelessly and hilariously unprepared for. It’s a wild ride with a surprising mix of over 90 playable characters including Batman, Superman, Wonder Woman, the Green Ninja, Gandalf, Shakespeare,...

86% positive of 3,674 reviewsPlaying now: 80$19.99

Build a shared galaxy in StarMade

Build ships, stations, and factions with friends in StarMade’s online voxel sandbox. Create your own goals across a generated universe, with server-based co-op and PvP.

66% positive of 2,200 reviewsPlaying now: 7$14.99

Signs of Life

Signs of Life is a sci-fi survival sandbox platformer with a combination of procedurally generated and hand-crafted content. You'll explore mysterious locations, mine blocks for resources, and meet strange (and some familiar) creatures, some of which don't even want to kill you and eat your corpse.

76% positive of 717 reviewsPlaying now: 12$14.99

Dungeon Defenders Turns a Friend Group Into a Defense Crew

Build defenses with up to three friends, then fight beside them as monsters swarm the crystal. Dungeon Defenders mixes tower strategy, action combat, and a long trail of character and gear upgrades.

92% positive of 12,209 reviewsPlaying now: 459$14.99

Terraria Makes Every World a Shared Adventure

Mine, build, and take on a changing world with your friends in Terraria. A desktop server starts with 16 online player slots; explore for better gear, then bring it into boss fights and invasions together.

96% positive of 1,248,822 reviewsPlaying now: 26,586$9.99

Thrillville®: Off the Rails™

Thrillville™: Off the Rails lives up to its name with 20 death-defying rides! Players can build incredible coasters to leap from one track to another, launch through the air like cannonballs, blast through a burning rings of fire and more!

93% positive of 818 reviewsPlaying now: 6$9.99

Garry's Mod Co-op: An Open-Ended Physics Sandbox

Garry's Mod has no built-in co-op campaign, but its online Sandbox gives you and your friends physics tools, props, and a huge community workshop to turn an empty map into your own project.

96% positive of 1,099,375 reviewsPlaying now: 23,071$9.99

Dinkum

Dinkum is a survival life simulation game set on an island inspired by the rugged Australian outback. Farm, hunt, mine, fish, and forage to gather resources, expand your town, and discover what makes Dinkum so special—either solo or with friends.

92% positive of 24,731 reviewsPlaying now: 0$19.99

TerraTech

TerraTech is an open-world, sandbox adventure game, where you design and build your own creations through a mix of crafting, combat and discovery. Design vehicles from a huge library of blocks. Scavenge, craft and buy new parts to survive and become the ultimate planetary prospector.

91% positive of 20,658 reviewsPlaying now: 0$24.99

Portal Knights

The world of Elysia needs YOU! Join this cooperative, 3D sandbox action RPG to level up your character, craft epic weapons, conquer enemies in real-time, and build almost anything! Craft your adventure. Forge your hero. Become the ultimate Portal Knight!

82% positive of 16,933 reviewsPlaying now: 0$19.99

Colony Survival

Colony Survival is a unique first-person strategy game developed by a two-man team. Build your own colony in a voxel world. Command guards, farmers, miners and other colonists. Defend your colony against the horde of monsters that attacks every night!

91% positive of 8,286 reviewsPlaying now: 0$24.95

DRIFT CE

Tune your dream drift car, change parts, boost performance and challenge other players on Japan's legendary EBISU circuits!

72% positive of 1,832 reviewsPlaying now: 0$29.99

They Can't Stop All Of Us

D.A.B. Your foes in co-op & PvP battles. (D)efend bases with weapons and skill. (A)ttack with clever AI armies. (B)uild amazingly creative defenses.

72% positive of 1,625 reviewsPlaying now: 0Free

Vectorio Classic

The original, uncompleted version of Vectorio. Claim resources, unlock new buildings, and expand your defenses as you fight back against enemy forces in the classic edition of Vectorio! Play for free now.

93% positive of 1,472 reviewsPlaying now: 0Free

Survisland / 实境求生

Survisland is a super hardcore sandbox survival game that pays great attention to restoring the real survival experience. The character has rich and realistic actions and reactions to , and the process logic of making props is no different from reality.

62% positive of 1,467 reviewsPlaying now: 0$14.99

Crea

Progress with every slain monster, learn over 80 skills through talents, craft hundreds of items, and explore vast procedurally-generated worlds in this ever-expanding sandbox RPG!

72% positive of 1,084 reviewsPlaying now: 0$14.99

Ticket to Ride®

Discover a fresh adaptation of the iconic, multi-award-winning board game. Play against fellow fans around the world, or take on state-of-the-art AI opponents. Build a railway empire, claim routes and dominate your competitors on the leaderboards in this fan-favourite modern classic!

69% positive of 1,081 reviewsPlaying now: 0$14.99

Breakwaters: Crystal Tides

Survive in a world ravaged by massive Titans and an ever changing ocean sim. Displace water to find resources for building and crafting unique items. Swim, sail, and fly to explore new islands and fight Titans.

63% positive of 866 reviewsPlaying now: 0$19.99

ACTION SANDBOX

A physics sandbox game for people who like to play with digital toys. Create, control toys and define your goals.

72% positive of 788 reviewsPlaying now: 0$9.99

Scrapnaut

Scrapnaut is a co-op & singleplayer top-down, base building survival game with steampunk elements. Explore an open world with different biomes, take care of oxygen, manage your farms, generate electricity, build your home and much more!

69% positive of 736 reviewsPlaying now: 0$13.99