Early Access
Sandbox games currently in Steam Early Access, scored by how recently and how regularly they ship updates.
45 games in this view have a Steam AI disclosure. They stay hidden until you ask for them.
Hide AI-disclosed gamesShowing 1–24 of 258 games. AI-disclosed games are included.
See the logic all of us obey. Design, optimize, and reverse-engineer real quantum algorithms in an open-ended Zachlike puzzle game. Solve 500+ visual puzzles and hack other players’ creations. No coding or physics background required.
Quarks Interactive · Last signal today · 92% positive · 4 playing
Consistency
Irregular
53/100
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.
Quantum Rivet · Last signal today · 83% positive · 7 playing
Consistency
Sporadic
23/100
Animal Company is a chaotic multiplayer VR adventure where you and your friends play as thick-cheeked animals to dive into spooky worlds, fight monsters, uncover secret lab experiments, and turn literal trash into powerful physics gear.
Wooster Games · Last signal today · 86% positive · 7 playing
Consistency
Irregular
41/100
Survive in a harsh and dangerous world after an alien invasion. Gather resources, craft equipment, fight mutants and massive monsters, use weapons, vehicles and robots, explore territories, defend strongholds and fight for survival.
LIFE EFFECT · Last signal today · 86% positive · 13 playing
Consistency
Irregular
47/100
A Town Builder + Factory Sim where you fully automate a tropical village and feed a giant volcano. Use conveyor belts, trains, boats, zip lines, pipes, water wheels and more to produce massive amounts of items and keep everyone happy!
Erik Asmussen · Last signal today · 90% positive · 28 playing
Consistency
Sporadic
35/100
ShipShaper is a creative game about the simple joy of designing ships. Nothing more. Nothing less. Export to Bulwark, sail your creations or use in your own games with a free commercial license.
Tomas Sala · Last signal today · 97% positive · 20 playing
Consistency
Irregular
47/100
VEIN is a post-apocalyptic survival multiplayer sandbox game. Gather supplies to survive, explore abandoned buildings, defend your home, and rebuild society, whether alone or with friends.
Ramjet Studios · Last signal today · 87% positive · 1.4k playing
Consistency
Irregular
58/100
The Last Plague: Blight is an authentic survival experience rooted in realism and immersion. Endure the hazards of a brutal open world, uncover the origins of a mysterious disease, and become humanity’s final hope of ending the Blight.
Original Studios · Last signal today · 88% positive · 40 playing
Consistency
Irregular
47/100
Barfender is a chaotic 1–4 player co-op bar sim where you pour drinks, clean disasters, stop fights, and try to keep the bar alive while everything falls apart. Build the place, serve the crowd, survive the night.
Proto Division · Last signal today · 97% positive · 371 playing
Consistency
Irregular
49/100
A deep automation and programming game on a frozen alien planet. Write real code to drive rovers, run power grids, fabricate parts, and fly drone fleets across the world. Your scripts run while you plan your next move. The more you terraform, the more the planet responds.
AppsMafia · Last signal today · 84% positive · 65 playing
Consistency
Sporadic
23/100
Canvas of Kings is a minimalistic mapmaking tool that focuses on randomness and auto-generated elements on user-definable and interactive paths, plots and rooms.
Hannes Breuer · Last signal today · 93% positive · 39 playing
Consistency
Sporadic
38/100
A fully text-based single-player RPG inspired by classic MUDs. Step through portals into hand-authored and generated realms that scale to your character. Hunt loot, craft and enhance equipment, level multiple classes, and create your own adventures in the Portal Workshop.
TheHand · Last signal today · 91% positive · 2 playing
Consistency
Sporadic
39/100
Realistic ATC with your voice. VoiceATC Simulator is an Air Traffic Control simulation game: sequence aircraft into the runways in real airport configurations and sectoring, in a Generic, Spanish or US interface.
Lainoa Software · Last signal today · 83% positive · 3 playing
Consistency
Sporadic
35/100
Design your dream home with the precision of professional architecture software without the complexity. Create a parametric floor plan and watch walls, roofs, and stairs adapt automatically in 3D. Furnish and model, customize materials, explore and share your designs. Total freedom, zero pressure.
Crispytecture Games · Last signal today · 91% positive · 16 playing
Consistency
Rarely updated
19/100
A dynamic soft-body physics vehicle simulator capable of doing just about anything.
BeamNG · Last signal today · 97% positive · 21k playing
Consistency
Rarely updated
18/100
Welcome to Zeepkist! You race soapboxes down hills!
Steelpan Interactive · Last signal today · 97% positive · 32 playing
Consistency
Irregular
41/100
Manage your own horse racing stables, breed and train future champions. Compete across diverse tracks, balance finances, manage staff, and expand your reach in the world of horse racing. Turn ambition into legacy, one choice at a time.
Sheep Meadow Road Games · Last signal today · 90% positive · 39 playing
Consistency
Consistent
75/100
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.
Lapioware · Last signal today · 94% positive · 1 playing
Consistency
Irregular
41/100
Explore the Solar System. Mine and drop asteroids. Colonize and terraform. Lead the space race and compete with other corporations on your way to profit. Watch the expansion of human race over the centuries.
SpaceOps · Last signal today · 87% positive · 52 playing
Consistency
Irregular
56/100
Build and fly realistic aircraft. Use free-form fuselage and wing editor tools and tune your engines to recreate aircraft from any era or design your own.
Stonext Games · Last signal today · 84% positive · 93 playing
Consistency
Irregular
51/100
Dig mines, extract resources, and produce goods to restore order to the state. Become a successful businessman and an effective state governor in the late Wild West era!
KishMish Games · Last signal today · 90% positive · 75 playing
Consistency
Irregular
41/100
Stardeus is a deep colony sim set on a broken starship manned by drones and hibernating human survivors. As the AI, have your drones repair your ship, save your crew and travel the stars in this beautiful simulation.
Kodo Linija · Last signal today · 87% positive · 22 playing
Consistency
Rarely updated
18/100
From the creators of Game Dev Tycoon comes Tavern Keeper 🍻, a cosy-chaotic management sim, featuring a powerful decoration sandbox and a magical storybook RPG!
Greenheart Games 💚 · Last signal today · 94% positive · 410 playing
Consistency
Consistent
64/100
Go on a trip through time! Experience the freedom of traveling into any date, hour and minute in time between the years 1 and 3033 AD! Help your best friend Edward in his scientific affairs! Watch out for the Time Agents & avoid yourself!
Lost in Days Studio · Last signal today · 97% positive · 11 playing
Consistency
Consistent
65/100