Simulation · Moddable · Sandbox games to play together
85 Simulation · Moddable · Sandbox games your group can play together online, including Japanese Ramen Simulator, Scrap Mechanic, and ENDLESS Legend™ 2.
Japanese Ramen Simulator is a ramen shop management sim for up to six players. Prepare ingredients, cook noodles, and arrange toppings to craft the perfect bowl. Create original dishes, design your kitchen and dining area, and build your ramen restaurant with friends or on your own!
92%92% positive of 628 reviews1.9KPlaying now: 1,888$14.99
Enter the creative paradise of Scrap Mechanic! Build fantastic machines, go on adventures with your friends and defend against waves of evil Farmbots in this imaginative multiplayer survival sandbox. With Scrap Mechanic’s powerful creation tools you can engineer your own adventures!
91%91% positive of 109,897 reviews1.4KPlaying now: 1,375$28.99
Lead your people to victory on an ever-evolving world in this strategy game featuring asymmetric factions led by powerful heroes. Build your empire, wield political influence, and raise grand armies to wage war in a race to uncover dark secrets buried within the planet.
82%82% positive of 3,740 reviews725Playing now: 725$49.99
Gladio Mori is a physics-driven gladiator fighting game with no health bars. Stab on arteries, pierce vital organs and cut off limbs. Build your own movesets, paint your fighter and battle friends online with cross-play.
83%83% positive of 1,489 reviews179Playing now: 179$15.99
A sandbox battle simulator game where you can build your own shape-shifting warbots, program their AI, and watch them smash each other up on the battlefield! Join the battles yourself by taking control of the warbots! Use Steam Workshop to check out warbots created by players from around the world!
83%83% positive of 167 reviews7Playing now: 7$9.99
Drive officially licensed buses from renowned manufacturers and manage your bus company to success. Felicia Bay’s public transportation system is counting on you!
63%63% positive of 733 reviews90Playing now: 90$29.99
Deep snow snowmobiling with real physics. Ride licensed sleds from Lynx, Polaris, and Ski-Doo across massive open backcountry maps. Find your own lines, climb steep mountains, ride with friends online, and chase the perfect run in untouched powder.
95%95% positive of 4,441 reviews112Playing now: 112$29.99
An approachable turn-based grand strategy sandbox. Lead a nation, forge alliances, wage wars and rewrite history. Play solo or with friends, create your own maps and scenarios, and explore community mods on Steam Workshop.
83%83% positive of 499 reviews19Playing now: 19$12.99
The city is your playground. The risk is real. The path is yours. A physics-driven experience that will immerse you in an authentic urban environment. Master your movement, challenge your instincts, and traverse a city designed for limitless creative potential.
72%72% positive of 1,630 reviews9Playing now: 9$14.99
Build your robot. Battle your robot. Robot Rumble 2 is the premier robot combat building simulator, where you create your robot from real-world inspired parts, then drive it in the arena to defeat other robots.
80%80% positive of 301 reviews37Playing now: 37Free
Unleash voxel warfare in 9-Bit Armies: A Bit Too Far. Lead a modern military, build bases, unlock units, and attack in all-out war. Engage on land, sea and air in over two dozen missions, online skirmishes, or co-op. Easy to learn, a challenge to master.
80%80% positive of 950 reviews21Playing now: 21$9.99
Driving game with Unlimited possibilities. Spiritual successor to classic top-down racing games, but in 3D with modern online features, countless game modes and extensive moddability. For casual fun, serious competition, or to unleash your creativity with the editors.
88%88% positive of 125 reviews2Playing now: 2$14.99
A fully moddable city sandbox with jobs, NPCs, apartments, garages, gangs, and more. Broke Protocol is an open-world action game focused on roleplaying and custom content. Define your goals and identity in a persistent, reactive world where you write your own story.
74%74% positive of 3,239 reviews13Playing now: 13Free
Pyroworks is a free-to-play online multiplayer game containing fireworks from real-life companies from all over the globe. You can choose to make your own show, cause destruction and chaos or simulate new years. Don't miss out on playing with your friends - the most fun part.
92%92% positive of 2,213 reviews54Playing now: 54Free
Final Factory blends factory building, spaceship design, and a rich universe to explore. Build a mega factory and command a massive fleet against the hostile local aliens. Discover new technologies and unlock the secrets of an ancient civilization as you explore an infinite cosmos.
78%78% positive of 288 reviews5Playing now: 5$18.99
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.
72%72% positive of 2,240 reviews302Playing now: 302$39.99
A strategy/action RPG. Create a character, engage in diplomacy, craft, trade and conquer new lands in a vast medieval sandbox. Raise armies to lead into battle and command and fight alongside your troops in massive real-time battles using a deep but intuitive skill-based combat system.
86%86% positive of 232,430 reviews13.3KPlaying now: 13,315$49.99
Load, drive, and deliver through a huge open world with up to 24 players in cross-platform multiplayer. Join your friends in exciting heavy transport convoys. Jump into the driver's seat of more than 30 unique vehicles and carry out complex loading tasks to deliver a variety of cargo.
70%70% positive of 2,168 reviews8Playing now: 8$19.99
Battle Talent is a challenging physics-based rogue-lite sword-fighting game, and now includes multiplayer mode, team up with friends to defeat enemies! You can create your own fighting style in a mega seamless procedural dungeon. With over 80 enemy variants, 100 weapons, and 60 perks.
76%76% positive of 1,211 reviews6Playing now: 6$19.99
Rise to power as any modern day country in a realistic military, political and economic simulation. Command your country's diplomacy, espionage, and resource management to strengthen your position. Use real-time tactical control of your military to fortify your place as the Supreme Ruler.
65%65% positive of 535 reviews53Playing now: 53$29.99
Create your own creatures to explore online worlds with friends and collect new parts to upgrade your stats and abilities! Complete quests, battle enemies, challenge friends to minigames, or just have fun roleplaying — the possibilities are endless when your imagination is the limit!
86%86% positive of 746 reviews5Playing now: 5$7.99
Old World is a revolutionary new historical strategy game where you lead your dynasty over generations of rule against rival kings and queens. Wage massive wars, manage your court, and build a dynasty — or watch your empire crumble to dust. What legacy will you leave behind?
82%82% positive of 6,108 reviews805Playing now: 805$39.99