Early Access
Sandbox games currently in Steam Early Access, scored by how recently and how regularly they ship updates. Filtered to actively updated.
45 games in this view have a Steam AI disclosure. They stay hidden until you ask for them.
Hide AI-disclosed gamesShowing 49–72 of 193 actively updated. AI-disclosed games are included.
A relaxing game about space exploration that can be played full screen or at the bottom of your screen. Trade, fight, mine and salvage your way through a procedurally generated galaxy. Let the game idle while your autopilot handles business and builds your fortune.
Bat Roost Games · Last signal 3 days ago · 90% positive · 205 playing
Consistency
Very consistent
100/100
An evolution simulation game. Take control of your species in the environment and edit your species as a whole. Compete with other evolving species for resources on an alien planet.
Revolutionary Games Studio · Last signal 4 days ago · 92% positive · 22 playing
Consistency
Irregular
41/100
Build castles on voxel terrain based on real Japanese geographic data, and defeat over 1,000 samurai and ninja enemies. Shape the terrain freely using blocks. The game features over 100 technologies and buildings inspired by medieval Japanese history.
KC Project · Last signal 4 days ago · 96% positive · 3 playing
Consistency
Irregular
53/100
Gather resources, craft components, build vehicles, and code their logic in a physics-driven engineering sandbox and full scale space sim.
batcholi · Last signal 4 days ago · 88% positive · 4 playing
Consistency
Consistent
69/100
Astrox Imperium is a relaxing space game where you fly around a generated universe. Mining, Fighting, Building, Exploring, and Surviving. What makes this game unique? You have complete control of how it plays. A robust sandbox and lots of MOD tools. Make it your game, and play it your own way.
Jace Masula · Last signal 4 days ago · 84% positive · 14 playing
Consistency
Sporadic
32/100
Doodle Empires is an alternate history sandbox game all about drawing your own nations with your own histories and stories in a variety of maps. Watch your world take shape and evolve over time, and decide which nations will rise and which nations will fall.
Turtle Stack Games · Last signal 4 days ago · 93% positive · 71 playing
Consistency
Consistent
76/100
Be one of those intrepid storm chasers in this online multiplayer video game. Your goal is to shoot the best twisters pictures without dying because of powerful winds and flying debris. Feel the challenge of correctly forecasting and intercepting storms with the optimal vantage points before other players.
Little Cloud Games · Last signal 4 days ago · 89% positive · 10 playing
Consistency
Sporadic
36/100
The ultimate grand strategy sandbox. Watch dynamic history unfold, reshape nations with God Mode, or take direct command of any country, including a full First World War campaign. Draw custom maps, script branching campaigns, and program your own national AI.
Kisotik Games · Last signal 4 days ago · 93% positive · 21 playing
Consistency
Consistent
71/100
A farming & restaurant management sim with base building elements. Grow in backyard to cook & serve! Discover new recipes by exploring ingredients on the island; gather, fish, raise animals & produce with machines. Manage resources, hire staff & grow your organic business into a 5-star restaurant!
indieGiant · Last signal 4 days ago · 91% positive · 574 playing
Consistency
Consistent
77/100
Adorable spider chaos! Swing around the house, weave crazy structures, play with physics-based objects, and pull off chores with nothing but your webs and your wits in this madcap sandbox adventure. Play solo or cause chaos together in 1-4 player local co-op!
Fire Totem Games · Last signal 4 days ago · 99% positive · 48 playing
Consistency
Irregular
41/100
The open-world action-RPG, where you can do anything, of your dreams… as if it came out 30 years ago!
Ithiro Sumi · Last signal 4 days ago · 95% positive · 43 playing
Consistency
Very consistent
100/100
Good Heavens! is an open-world crafting and building RPG for solo and online co-op up to 8 players. Explore mysterious biomes, build your base, master six distinct tech trees, rebuild fallen cities, and help a clumsy God restore his world on the brink of collapse.
Nowhere Studios · Last signal 4 days ago · 91% positive · 10 playing
Consistency
Consistent
70/100
Paralives is a life simulation game about building homes, lives and bonds. Through both hardship and success, where will your story take you?
Alex Massé and team · Last signal 4 days ago · 90% positive · 976 playing
Consistency
Very consistent
88/100
DeadOS is an early access zombie outbreak simulator by Benn Powell that focuses on city-wide scenarios where you have access to fully customize your apocalypse experience from beginning to end. Simulation. Sandbox. Survival!
Benn Powell · Last signal 4 days ago · 99% positive · 2 playing
Consistency
Very consistent
83/100
Build your own base and take command of firefighting, police, EMS, and SWAT operations. Thanks to real map data, you can play right in your hometown - or anywhere in the world! Manage your fleet, hire staff, and take on a variety of authentic operations. In which city are you taking command?
PeDePe GbR · Last signal 5 days ago · 86% positive · 139 playing
Consistency
Very consistent
100/100
Grow crops, automate production, and manage your own store. Turn fresh harvests into valuable products and create a wide range of goods. Optimize your workflow with efficient production chains and smart business decisions. Expand your facilities and build the fully automated farm-to-market business.
Bewolba Studios · Last signal 5 days ago · 95% positive · 30 playing
Consistency
Very consistent
100/100
Establish a home for your industrious mice under the oppressive paw of your cat overlords in this city builder featuring complex simulations, intricate production chains, and the age-old rivalry between cat and mouse.
Minakata Dynamics · Last signal 5 days ago · 92% positive · 742 playing
Consistency
Very consistent
88/100
A railway-building adventure in an endless, procedurally generated world. Lay tracks, transport passengers and goods, mine resources, and buy unique locomotives. Play solo or with friends and create your ultimate railway network!
Benjamin Voráč · Last signal 5 days ago · 89% positive · 2 playing
Consistency
Consistent
75/100
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!
Wild Dog · Last signal 5 days ago · 92% positive · 680 playing
Consistency
Very consistent
100/100
Soulash 2 is a sandbox RPG roguelike with a procedurally generated open world, simulated history, skill-based progression system, customizable abilities, material-based crafting, building, trading, and the possibility of total mayhem. Will you save your world or destroy it?
Artur Smiarowski · Last signal 5 days ago · 85% positive · 51 playing
Consistency
Very consistent
94/100
Take control of a fully destructible spaceship and explore, blast or trade your way through the cosmos, alone or with friends. Every tile matters, as you dogfight, maneuver or speed your way past friendly traders, hostile aliens, and impressive space navies. What will you do, Captain?
Happy Polygon · Last signal 5 days ago · 95% positive · 0 playing
Consistency
Sporadic
33/100
Keep co-op worlds alive, even when the host is offline. SaveSync is a save syncing, backup, and sharing tool built for co-op games. Seamlessly transfer save files between friends. No more manual copy-pasting or paying for dedicated servers.
SaveSync · Last signal 5 days ago · 93% positive · 1.1k playing
Consistency
Very consistent
100/100
The glory of Rome is at your fingertips in this city-building game where you must appease the gods, enact laws, and develop complex supply chains to meet the needs of your citizens.
Lion Shield · Last signal 5 days ago · 93% positive · 466 playing
Consistency
Very consistent
100/100
Start with your Command Center and expand it into a colossal modular flagship, module by module. Design custom warships from the ground up, grow a thriving civilization, and command powerful fleets across the Solar System in tactical real-time battles.
Team Complex LTD · Last signal 5 days ago · 87% positive · 24 playing
Consistency
Sporadic
35/100