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 25–48 of 193 actively updated. AI-disclosed games are included.
Rising World is a voxel based open-world sandbox game, featuring a procedurally generated world, playable in single and multi-player.
JIW-Games · Last signal yesterday · 86% positive · 81 playing
Consistency
Sporadic
35/100
Songs of Syx is a fantasy city-builder with vast battles simulating thousands of citizens and soldiers. Start off as a small village and build, scheme, and fight your way towards a mighty empire. The mechanics are deep and true to life, where tiny events can spiral into the collapse of kingdoms.
Gamatron AB · Last signal yesterday · 94% positive · 1.1k playing
Consistency
Irregular
41/100
Before Kvir rose, its tribes lived under Eastbornian rule. As shadows stir beneath the snow, you must unite the North and spark the dawn of a realm destined for glory. The storm is coming — and nothing will be the same.
BlackTale Games · Last signal yesterday · 92% positive · 4 playing
Consistency
Sporadic
20/100
Command drones, deploy mobile air defense systems and conduct tactical aerial operations. Choose your side - Ukrainian or Russian forces - and protect critical infrastructure in a realistic military simulation on a detailed map.
VasyliyBritva · Last signal yesterday · 91% positive · 23 playing
Consistency
Irregular
41/100
Explore a drowned Earth, restore lost systems, and raise the last human seeds in this first-person survival-crafting adventure. Build, scavenge, defend, and launch humanity back to the stars.
Channel37 Ltd · Last signal yesterday · 86% positive · 3.5k playing
Consistency
Irregular
58/100
From Glory To Goo is a Sci-Fi survival RTS. Build a colony and hold the line against alien hordes with your fortifications, army and ship’s orbital cannons. Lead factions with distinct playstyles across multiple game modes.
Stratagem Blue · Last signal yesterday · 96% positive · 52 playing
Consistency
Consistent
78/100
Voxel Eras is a game about collecting, crafting, and automating within an infinite 3D voxel world. Taking your humble workshop made with your own two fists through eras of technology. Design, build, and evolve your operations, all in the name of progress.
Destiny Hailstorm · Last signal yesterday · 95% positive · 0 playing
Consistency
Sporadic
29/100
Voor de Kroon is an immersive medieval strategy-action game with historically inspired arms and armor. Fight historical battles and command your troops from the front line or the RTS camera. Use the Warforge editor to reshape the entire game and build your own medieval campaigns.
Future Minimalism · Last signal yesterday · 87% positive · 17 playing
Consistency
Consistent
64/100
Advanced city simulator with minimalist "Paint" graphics. Build complex intersections, edit traffic rules, and solve traffic jams without melting your PC.
Blunix Games · Last signal yesterday · 97% positive · 1 playing
Consistency
Sporadic
29/100
Red Tears is a dynamic Stealth-Action FPS set within a non-linear Open-World featuring brutal bush warfare. Employ guerrilla tactics, strike from the shadows, and endure violent gunfights to survive. Gather intel, loot resources, and fight boots on the ground in this Cold War-Era conflict.
Arun Haines · Last signal yesterday · 86% positive · 1 playing
Consistency
Irregular
53/100
Every block of this planet is real, including fluids! Dig it, flood it, process it. FluxWerks is a factory automation game on a fully destructible voxel world with physical fluid and heat simulation. Dig anywhere, automate everything, and survey a world that was supposed to be empty.
Metallibitti Oy · Last signal yesterday · 92% positive · 41 playing
Consistency
Sporadic
29/100
From the lead designer of Cold Waters, Sea Power lets you control NATO and Warsaw Pact forces in modern naval conflict campaigns. Use your advanced naval weaponry and sensors to respect rules of engagement and defeat the enemy forces in a tense fight for initiative and air/naval supremacy.
Triassic Games · Last signal yesterday · 91% positive · 1.1k playing
Consistency
Irregular
47/100
SÆLIG is a game that blends together elements of simulation, strategy, RPG, and business management. Centred around the life of you and your family, you must try to survive and bring wealth and prosperity to your household.
Atorcoppe Games · Last signal 2 days ago · 87% positive · 18 playing
Consistency
Consistent
61/100
Experience next level board control, skate with friends, and film insane tricks in the most immersive skateboarding game ever made.
Flip Axis Studios · Last signal 2 days ago · 99% positive · 2 playing
Consistency
Irregular
41/100
Mashinky is a transport strategy game about trains. The goal is to create your own transport empire on a procedurally generated map. It’s a unique blend of realistic graphics combined with an isometric construction mode and board game-like rules.
Jan Zelený · Last signal 2 days ago · 85% positive · 9 playing
Consistency
Sporadic
26/100
Chernobyl Simulator puts you in the control room of the most infamous nuclear power plant in history. Step into the shoes of a reactor operator, where every switch, gauge, and decision matters. Experience the pressure, responsibility, and unforgiving complexity of Soviet-era nuclear operations.
Rikarin Studio · Last signal 2 days ago · 91% positive · 1 playing
Consistency
Irregular
53/100
Run your own cozy café in Tailside! Brew coffee, decorate your café, and follow small stories in the daily newspaper. Progress through days and levels to unlock new items, skills, villagers, and creature visitors.
Coffee Beans Dev · Last signal 2 days ago · 96% positive · 6 playing
Consistency
Irregular
43/100
A deep, open world life sim and town building game set in a cozy post-apocalyptic paradise. Restore your town, sail across a mysterious archipelago, rescue animal pals. Hunt for relics and farm, fish & craft everything you need. Can you help turn Critter Cove into a thriving tourist town once again?
Gentleman Rat Studios · Last signal 2 days ago · 95% positive · 43 playing
Consistency
Sporadic
35/100
The Sapling is a simulation game where you design your own plants, animals, algae and fungi, and put them in a world together. Or you turn on random mutations, and see what evolution does to your ecosystem!
Wessel Stoop · Last signal 3 days ago · 89% positive · 62 playing
Consistency
Irregular
47/100
This game will make you rich! Learn the basics of investment and life management. Your goal is to make your dream come true. You can make a career, buy real estate, run business, trade stocks, become a blogger, or make a fortune on an art market. Study, network, and plan your time for all of it.
Digital Geckos · Last signal 3 days ago · 93% positive · 4 playing
Consistency
Sporadic
23/100
A single-developer passion project. A seamless full scale solar system. Thrilling action. Be part of an incredible journey as a Universe is built from the ground up!
Elliptic Games · Last signal 3 days ago · 93% positive · 2 playing
Consistency
Rarely updated
6/100
Mix Universe is a musical sandbox game where you play as a Mixonaut connecting nodes to create music that you can upload to the universe for everyone to play!
Chris Zukowski · Last signal 3 days ago · 96% positive · 1 playing
Consistency
Sporadic
23/100
Medieval Trading & Transport with Physics-Based Items. Start as a Worthless Merchant and work your way up as you carefully handle your goods through a Medieval World!
Game Draft Studio · Last signal 3 days ago · 87% positive · 2 playing
Consistency
Irregular
47/100
Command your ship and fleet in a galaxy that truly lives: 150 sectors where six factions mine, haul, trade, build and wage war whether you're there or not. Trade it, rob it, defend it — or forge your own fleet and carve out your place in it. Play solo or in online co-op.
Astraeon Interactive · Last signal 3 days ago · 90% positive · 63 playing
Consistency
Rarely updated
12/100