Building · Moddable games to play together

52 Building · Moddable games your group can play together online, including Parkitect, Airships: Conquer the Skies, and Garden Paws.

All games: 24

Parkitect

Parkitect is a business simulation game that charges you with the construction and management of theme parks! Bringing back the best of classic theme park games with many new features and content on top. Now supports online co-op with up to 8 players!

94% positive of 6,836 reviewsPlaying now: 129$11.99

Airships: Conquer the Skies

Construct mighty steampunk airships and fly them into battle, waging war and conquering the skies!

95% positive of 6,221 reviewsPlaying now: 71$24.99

Garden Paws

You have inherited your grandparents farm as they set off to travel the world. Work with Frank at the local construction shop to finish off the final touches on your new home. Aid Frank and Mayor Wilson in building up the town so it may reach it's full potential.

90% positive of 1,894 reviewsPlaying now: 10$19.99

Evospace

Contribute to the colonization of the universe. Get and process resources, develop your technologies. Achieve complete automation and build a portal to include another planet in the chain of worlds.

83% positive of 353 reviewsPlaying now: 16$14.99

Rolling Line

Build your own model railway tracks and scenery or explore pre-made maps, including 1000s of player-made maps and mods on the Steam Workshop! Play solo and in multiplayer, both in virtual reality and on PC!

96% positive of 2,483 reviewsPlaying now: 73$24.99

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

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

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

Sid Meier’s Civilization® VI

Expand your empire, advance your culture and go head-to-head against history’s greatest leaders. Will your civilization stand the test of time?

86% positive of 277,310 reviewsPlaying now: 20,981$59.99

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.

75% positive of 2,712 reviewsPlaying now: 40$29.99

Simutrans

Simutrans is a freeware and open-source transportation simulator. Your goal is to establish a successful transport company. Transport passengers, mail and goods by rail, road, ship, and even air. Interconnect districts, cities, public buildings, industries and tourist attractions.

74% positive of 687 reviewsPlaying now: 35Free

Software Inc.

Construct and design buildings for optimal working conditions. Hire people to design and release software, so you can defeat the simulated competition and take over their businesses. Manage and educate your employees to make sure they are skilled and satisfied with their job.

94% positive of 7,625 reviewsPlaying now: 169$22.99

Automation - The Car Company Tycoon Game

Make your dream cars a reality with Automation’s unparalleled car and engine design tools. Gain a competitive edge through smart engineering and business decisions to help you build an automotive empire. Will you become an industry leader, or just a footnote in automotive history?

92% positive of 17,026 reviewsPlaying now: 655$29.99

Construction Simulator 2015

In Construction Simulator 2015, you take the controls of 16 realistic construction machines made by LIEBHERR, STILL and MAN with high-quality 3D graphics.

78% positive of 4,599 reviewsPlaying now: 22$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 12,208 reviewsPlaying now: 459$14.99

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.

95% positive of 1,099,246 reviewsPlaying now: 15,644$9.99

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

Warlords Under Siege

Warlords Under Siege is a mix of RTS and Roguelike genre, where you build a small city and defend it against continuous waves of enemies. Improve your assortment of weapons with each playthrough, unlocking new possibilities to beat the ever-increasing threat.

75% positive of 437 reviewsPlaying now: 0$9.99

Waves of Steel

If you like warships but wish they could kickflip, Waves of Steel is for you! Build your own custom warship and embark on a sprawling campaign filled with enemy ships, planes, submarines, and bizarre superweapons. Fast-paced arcade naval action is here!

89% positive of 409 reviewsPlaying now: 0$19.99

Kingdom Wars 2: Definitive Edition

An intense real-time strategy game set in a dark fantasy world of Orcs, Elves and Dragons. Kingdom Wars 2 combines the best of Zombie survival and crafting with complex fast-paced city building. Fight massive siege battles that turn beautiful landscapes into gory blood-soaked battlefields.

66% positive of 348 reviewsPlaying now: 0$9.99

Logic World

Invent a new computer! Logic World is a first-person sandbox simulation game that's all about digital logic. Play alone or with friends, design unique machines, build up layers of complexity, and experience the joy of circuits!

93% positive of 343 reviewsPlaying now: 0$25

Diesel Railcar Simulator

Drive vintage diesel trains, shifting gears manually and trying to reach a perfect score. Create new routes, trains and timetables. Share your creations and download new content from the Workshop.

92% positive of 312 reviewsPlaying now: 0$19.99