Games like {Undefined}

Still thinking about {Undefined} and its relaxing and replayable tone? Start with these games when you are ready. Most of them work well for a shared session.

Space Engineers
Build working ships, stations and planetary bases block by block, then fly them, crash them, mine with them and blow pieces off them. Real mass, power, oxygen and gravity keep every design honest. Best with friends and a tolerance for learning things the hard way.
Also in Survival crafting and Co-op · Replayable, Chaotic
89% of 102,815 Steam reviews are positivePlayers online now: 4,176$19.99
Blockscape
The ultimate block building game. Start with nothing and build an empire. Smooth voxel worlds, settlers, crafting, vehicles, and Steam multiplayer. Survival or Just Build — every item in your inventory is also a building block.
Also in Survival crafting · Relaxing, Replayable
43% of 725 Steam reviews are positive$9.99
Archean
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.
Also in Survival crafting and Co-op · Relaxing, Replayable, Chaotic
87% of 246 Steam reviews are positivePlayers online now: 14$19.99
Empyrion - Galactic Survival
A space sandbox survival adventure: start in a crashed pod on an alien planet, mine, craft and build your way up to capital ships, planetary bases and space stations, then warp off to explore a whole galaxy. Play alone or with friends, and expect things to go gloriously wrong along the way.
Also in Survival crafting and Co-op · Replayable, Chaotic
78% of 29,245 Steam reviews are positivePlayers online now: 561$19.99
Lay of the Land
A voxel sandbox where the whole world obeys physics: fire spreads, water carves valleys, sand collapses, and every wall can come down. Explore a procedurally generated island, fight monsters and bosses, forge elemental weapons, and build anything from a hut to a castle. A relaxed, satisfying game that rewards poking at things.
Also in Survival crafting and Co-op · Relaxing, Replayable, Chaotic
80% of 1,239 Steam reviews are positivePlayers online now: 7$19.99
SUPER BUILD
Build, design, and explore your own fantasy world using over 1000+ items, in this relaxing sandbox game. No missions, no objectives, no timers. Just stress-free building, exploration, and good vibes.
Also in Co-op · Relaxing, Replayable
80% of 227 Steam reviews are positive$14.99
Brickadia
A brick sandbox where building, wiring and shooting all happen in the same world, live, with friends. Stack skyscrapers, rig doors and traps with logic gates, turn any build into an arena, then wander the Gallery when you feel like playing instead of making.
Also in Co-op · Relaxing, Replayable, Chaotic
81% of 1,285 Steam reviews are positivePlayers online now: 61$19.99
TerraTech
Build cars, tanks and planes from a huge library of blocks, then take them out into an infinite open world to mine, fight rival prospectors and grow your empire. Salvage parts from wrecks, craft your own, and build machines only you could have imagined.
Also in Survival crafting and Co-op · Relaxing, Replayable, Chaotic
92% of 20,665 Steam reviews are positivePlayers online now: 241$24.99
StarMade
A voxel sandbox in space where every ship, station and turret is built block by block, then flown into battle. Mine asteroids, run factories, trade, and network the galaxy with warp gates. The universe is procedurally generated and nearly endless, and it bends to your settings. Best with friends on a server.
Also in Co-op · Replayable
66% of 2,201 Steam reviews are positivePlayers online now: 5$14.99
Anymaker
Build vehicles from the ground up and drive them across a hostile open world. Scavenge parts, tools and supplies, engineer your chassis, engine, wiring and controls by hand, and fight off wildlife, the undead and rival survivors. Play Survival solo or in 6-player co-op, or build freely in Sandbox.
Also in Survival crafting and Co-op · Replayable, Chaotic
55% of 378 Steam reviews are positivePlayers online now: 56$24.99
GearBlocks
A sandbox for mechanically minded builders: snap together motors, gears, springs and joints to make cars, cranes, walking machines or a fully working engine, then drive them and smash them to bits. Physics keeps everything honest, and the workshop is full of machines other builders made.
Relaxing, Replayable, Chaotic
90% of 770 Steam reviews are positivePlayers online now: 37$14.99
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 based on physics simulation.
Also in Survival crafting · Relaxing, Replayable, Chaotic
94% of 310 Steam reviews are positive$19.99

Cheaper than {Undefined}

Space Engineers

Design spacecraft and stations from raw blocks, then watch real physics decide whether your engineering holds up.

$19.99

Archean

Archean is a first-person engineering sandbox where physics does the judging.

$19.99

Blockscape

The ultimate block building game. Start with nothing and build an empire. Smooth voxel worlds, settlers, crafting, vehicles, and Steam multiplayer.

$9.99

Empyrion - Galactic Survival

Mine, craft and build your way from a bare survival start to bases, starships and a whole galaxy to explore, alone or with friends.

$19.99

Lay of the Land

Mine, build and fight on an island where fire, water and physics reshape everything, alone or with friends.

$19.99

SUPER BUILD

Build, design, and explore your own fantasy world using over 1000+ items, in this relaxing sandbox game. No missions, no objectives, no timers.

$14.99

Brickadia

Stack bricks into whatever you imagine, then hand your friends a weapon and see what survives.

$19.99

GearBlocks

Snap motors, gears and springs into cars, cranes or walking contraptions, then take them for a spin and watch physics do its worst.

$14.99

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…

$19.99

StarMade

A voxel universe where you mine, craft and command your own fleet, alone or with friends on a server.

$14.99

Astro Colony

Set up conveyor networks, dock your stations and research new tech at your own pace, alone or with friends.

$19.99

Rising World

A voxel sandbox with a fully destructible, procedurally generated world.

$14.99

Hidden gems like {Undefined}

Approximately Up

Assemble a ship from thousands of parts, wire its systems together, and take it to fifteen strange planets, alone or with friends.

$18.74

Allumeria

Gather, craft and reshape a colorful voxel world, then take your custom gear into dungeons and boss fights, alone or with friends.

$11.99

Sandustry

Sift gold from sand, build factories that grow with you, and uncover what an ancient civilization left behind.

$19.99

FluxWerks

Build a factory inside a destructible voxel world, tunneling, managing heat and letting your nanobot swarm handle the rest.

$24.99

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…

$19.99

Mars First Logistics

Assemble wobbly machines from over 100 parts and deliver awkward cargo across a bright, low-pressure Mars, alone or with friends.

$19.99

Eden Crafters

Eden Crafters hands you a hostile planet and one job: make it livable.

$19.99

Outside the Blocks

Unleash your creativity and design your own diorama in Outside the Blocks ‒ a full-featured model builder.

$14.99

Lay of the Land

Mine, build and fight on an island where fire, water and physics reshape everything, alone or with friends.

$19.99

Astro Colony

Set up conveyor networks, dock your stations and research new tech at your own pace, alone or with friends.

$19.99

Brickadia

Stack bricks into whatever you imagine, then hand your friends a weapon and see what survives.

$19.99

The Enjenir: The Engineering Physics Building Simulator

Put your engineering and problem solving skills to the test in this sandbox physics building game!

$8.99

Games like {Undefined}

Cheaper than {Undefined}

Hidden gems like {Undefined}

Newest games like {Undefined}