Universe Sandbox
Build solar systems, bend orbits and set off cosmic disasters with real physics, all at your own pace.
96% of 28,236 Steam reviews are positivePlayers online now: 470$20.09
Games like Space Simulation Toolkit
Chasing that chaotic and relaxing feeling you got from Space Simulation Toolkit? You might settle into these games easily.
Universe Sandbox
A physics-based space simulator where you play with the universe itself. Build solar systems, nudge planets out of orbit, boil oceans, spin Jupiter apart and watch a supernova unfold. Real gravity, real science, and no consequences except the ones you create. Calm stargazing and total cosmic mayhem, both at your own pace.
Chaotic, Relaxing, Replayable
96% of 28,236 Steam reviews are positivePlayers online now: 470$20.09The Powder Toy
Build a nuclear reactor, wire a working computer, or just drop a bomb on your own city and watch the fallout drift. Runs on nearly anything, and one more experiment is always five minutes away.
Chaotic, Relaxing, Replayable
98% of 3,122 Steam reviews are positivePlayers online now: 155FreeArchean
Archean is a first-person engineering sandbox where physics does the judging. You gather ore, craft parts, bolt together planes and rockets, wire their power and fluids, then program them in XenonCode. Planets are full-sized, orbits are real, and if it flies, it is because you built something that flies.
Chaotic, Relaxing, Replayable
87% of 246 Steam reviews are positivePlayers online now: 14$19.99PixPhys
PixPhys is a 2D engineering sandbox with huge technical possibilities and scope for imagination: design equipment from a jet-powered cart to space stations.
Chaotic, Relaxing, Replayable
73% of 193 Steam reviews are positivePlayers online now: 1$3.99ACTION SANDBOX
A physics sandbox game for people who like to play with digital toys. Create, control toys and define your goals.
Chaotic, Relaxing, Replayable
73% of 788 Steam reviews are positive$9.99Sand:box
A relaxing falling-sand sandbox with pixel particles, digital circuits and playable stickmen. Build contraptions, automate things, or just flood a tunnel with sand and watch it pour. It runs at your pace, and there is always one more element to try.
Chaotic, Relaxing, Replayable
93% of 1,719 Steam reviews are positivePlayers online now: 24$1.49Space Crash Simulator
Real-time planetary collision sandbox powered by SPH physics: smash planets together and watch the destruction and its aftermath!
Chaotic, Relaxing, Replayable
89% of 37 Steam reviews are positivePlayers online now: 5$9.99Sandboxels
A falling-sand sandbox with over 500 elements and thousands of reactions between them. Pour water on hot metal, grow a tiny ecosystem, cook a pixel pizza, or just watch fire spread. No goals, no failure, no timer: a toy box of chemistry and physics you can poke at for five minutes or five hours.
Chaotic, Relaxing, Replayable
94% of 1,172 Steam reviews are positivePlayers online now: 37$0.99Regular Human Workshop
A 2D physics sandbox with no goals and no rules except gravity. Spawn ragdolls that walk, feel pain and bleed like the real thing, wire buttons to guns, and slow time to watch a bullet do its work. Grim, funny and endlessly fiddly: you decide what this workshop is for.
Chaotic, Relaxing, Replayable
89% of 1,210 Steam reviews are positivePlayers online now: 10$9.99Spaceflight Simulator
Build rockets from real-world parts, launch them, and find out the hard way why landing is the tricky part. A 2D space sandbox with honest physics, the whole Solar System to reach, and no punishment for exploding. Trial, error, one more rocket.
Chaotic, Relaxing, Replayable
96% of 9,645 Steam reviews are positivePlayers online now: 148$14.99Nuclear Design Bureau
A hardcore physics sandbox where you play a junior engineer at the Kurchatov Institute. The State hands you a directive, a warehouse of dangerous materials and a blueprint grid. Paint on explosives, casings and cores, run the detonation for real, then work out why it fizzled. Design. Simulate. Detonate.
Chaotic, Replayable, Retro
78% of 441 Steam reviews are positivePlayers online now: 76$9.99The Sapling
Design your own plants, algae, fungi and animals, then set them loose in a world together. Add random mutations and watch evolution fill every niche, or shape the planet yourself, ice ages included. A calm, creative ecosystem toy from solo developer Wessel Stoop.
Relaxing, Replayable
88% of 1,974 Steam reviews are positivePlayers online now: 53$17.99
Cheaper than Space Simulation Toolkit
Archean
Archean is a first-person engineering sandbox where physics does the judging.
87% of 246 Steam reviews are positivePlayers online now: 14$19.99
PixPhys
PixPhys is a 2D engineering sandbox with huge technical possibilities and scope for imagination: design equipment from a jet-powered cart to space…
73% of 193 Steam reviews are positivePlayers online now: 1$3.99
ACTION SANDBOX
A physics sandbox game for people who like to play with digital toys. Create, control toys and define your goals.
73% of 788 Steam reviews are positive$9.99
Sand:box
Mix pixel particles into contraptions, from simple circuits to floods of sand, all at your own unhurried pace.
93% of 1,719 Steam reviews are positivePlayers online now: 24$1.49
Space Crash Simulator
Real-time planetary collision sandbox powered by SPH physics: smash planets together and watch the destruction and its aftermath!
89% of 37 Steam reviews are positivePlayers online now: 5$9.99
Sandboxels
A pixel sandbox where every powder, liquid and gas reacts, and the only goal is the one you set yourself.
94% of 1,172 Steam reviews are positivePlayers online now: 37$0.99
Spaceflight Simulator
Assemble rockets from real parts and take them from the launch pad to the far reaches of the Solar System, one failure at a time.
96% of 9,645 Steam reviews are positivePlayers online now: 148$14.99
Regular Human Workshop
A 2D physics sandbox with no goals and no rules except gravity.
89% of 1,210 Steam reviews are positivePlayers online now: 10$9.99
Nuclear Design Bureau
Draw your design on the grid, run a real detonation simulation, and figure out why it fizzled or why it did not.
78% of 441 Steam reviews are positivePlayers online now: 76$9.99
The Sapling
Design creatures and plants, release them into one world, and watch what evolution does with your creations.
88% of 1,974 Steam reviews are positivePlayers online now: 53$17.99
GearBlocks
Snap motors, gears and springs into cars, cranes or walking contraptions, then take them for a spin and watch physics do its worst.
90% of 770 Steam reviews are positivePlayers online now: 37$14.99
Hidden gems like Space Simulation Toolkit
Atomcraft
Mine, smelt and automate your way across a simulated world, chasing every element to fix your ship.
95% of 442 Steam reviews are positivePlayers online now: 11$14.99
Planetary Life
Terraform a barren world, tune its climate and watch the life you seed evolve across millennia, all at your own unhurried pace.
94% of 948 Steam reviews are positivePlayers online now: 17$11.99
Sandboxels
A pixel sandbox where every powder, liquid and gas reacts, and the only goal is the one you set yourself.
94% of 1,172 Steam reviews are positivePlayers online now: 37$0.99
Primitier
Primitier is a highly flexible VR sandbox game, where you can create tools and machinery by freely cutting and connecting objects in a vast world…
94% of 310 Steam reviews are positive$19.99
The Powder Toy
Mix elements, build contraptions and watch your experiments blow up in pixel-perfect fashion.
98% of 3,122 Steam reviews are positivePlayers online now: 155Free
Nuclear Design Bureau
Draw your design on the grid, run a real detonation simulation, and figure out why it fizzled or why it did not.
78% of 441 Steam reviews are positivePlayers online now: 76$9.99
Sand:box
Mix pixel particles into contraptions, from simple circuits to floods of sand, all at your own unhurried pace.
93% of 1,719 Steam reviews are positivePlayers online now: 24$1.49
GearBlocks
Snap motors, gears and springs into cars, cranes or walking contraptions, then take them for a spin and watch physics do its worst.
90% of 770 Steam reviews are positivePlayers online now: 37$14.99
Plasma
Snap together hundreds of parts into robots, factories or arcade machines, then teach them what to do with visual programming, alone or with friends.
90% of 1,176 Steam reviews are positivePlayers online now: 11Free
Archean
Archean is a first-person engineering sandbox where physics does the judging.
87% of 246 Steam reviews are positivePlayers online now: 14$19.99
Groundwork Simulator
Run a gold claim with heavy machinery, at your own pace and with friends if you want them.
74% of 1,036 Steam reviews are positivePlayers online now: 820$24.99
STANDBOX
Poke a wobbling ragdoll with tools, slow time, and watch the chaos unfold across three colorful maps.
90% of 2,962 Steam reviews are positivePlayers online now: 15$7.99
Newest games like Space Simulation Toolkit
Groundwork Simulator
Run a gold claim with heavy machinery, at your own pace and with friends if you want them.
74% of 1,036 Steam reviews are positivePlayers online now: 820$24.99
POWDR
POWDR is a high performance interactive particle sandbox featuring realistic fluids, sands, solids, interactions, and more! Every pixel is simulated.
100% of 2 Steam reviews are positive$4.99
ArmorSim
Stack armour plates, choose a real round and fire, then watch the penetration get worked out from actual physics at your own pace.
67% of 210 Steam reviews are positivePlayers online now: 13$13.29
Nuclear Design Bureau
Draw your design on the grid, run a real detonation simulation, and figure out why it fizzled or why it did not.
78% of 441 Steam reviews are positivePlayers online now: 76$9.99
Atomcraft
Mine, smelt and automate your way across a simulated world, chasing every element to fix your ship.
95% of 442 Steam reviews are positivePlayers online now: 11$14.99
Adaptory
Deep in uncharted space, your expedition took a challenging turn when your ship crash-landed.
76% of 99 Steam reviews are positive$19.99
Space Crash Simulator
Real-time planetary collision sandbox powered by SPH physics: smash planets together and watch the destruction and its aftermath!
89% of 37 Steam reviews are positivePlayers online now: 5$9.99
Planetary Life
Terraform a barren world, tune its climate and watch the life you seed evolve across millennia, all at your own unhurried pace.
94% of 948 Steam reviews are positivePlayers online now: 17$11.99
Galaxy Engine
Simulate the physics of the Universe on a large scale and create stunning visuals.
83% of 12 Steam reviews are positive$4.99
Primitier
Primitier is a highly flexible VR sandbox game, where you can create tools and machinery by freely cutting and connecting objects in a vast world…
94% of 310 Steam reviews are positive$19.99
Sandboxels
A pixel sandbox where every powder, liquid and gas reacts, and the only goal is the one you set yourself.
94% of 1,172 Steam reviews are positivePlayers online now: 37$0.99
Terra Firma
Play god and create your own world in this complex simulation.
93% of 607 Steam reviews are positivePlayers online now: 3Free