
Sand:box
A relaxing falling-sand pixel sandbox with circuits and playable stickmen.
Loved how chaotic and funny Simulo can get? Browse these co-op games for your next favorite. Plenty here let you team up if you like.
A relaxing falling-sand pixel sandbox with circuits and playable stickmen. You paint sand, water and wire, link up automation and electronics, then watch it work or blow it all up. A slow, fiddly toy for zoning out, not for co-op friends.
Chaotic, Replayable, Minimalist
Besiege is a physics building game about medieval machines that smash armies and castles. With co-op friends you bring those rickety catapults, saws and flying contraptions into multiplayer, team up to clear objectives and puzzles or turn on each other in machine combat.
Chaotic, Funny, Replayable
Brickadia is a brick-building sandbox where you and co-op friends build cities, vehicles and working contraptions together in real-time, then turn them into battle arenas or game modes. Easy to start, deep to master, and best shared.
Chaotic, Funny, Replayable
Build and play with others with a physics based sandbox created in unreal engine 5
Chaotic, Replayable, Relaxing
A physics sandbox voxel-based simulation game for you to mess with. Build world you can imagine and destroy anything you create.
Chaotic, Funny, Replayable
Create your own level with your friends online in the sandbox mode, play the mini-games, ragdoll, drive a car, fly with a Jetpack, fart to go higher, throw grenades. Access more than 45 items to build your own level.
Chaotic, Funny, Replayable
Main Assembly is a robot-building sandbox where you shape chassis, bolt on parts, and wire up behavior with visual programming. For co-op friends it means building bots and obstacle courses together, then racing them or smashing them into metallic pulp. Solo, there are over 100 challenges to work through.
Chaotic, Replayable, Relaxing
Put your creativity to the test! Use the in game tools to build a purely physics driven level. Create and Engineer your own character/object to control and use in the level. Go nuts with the many settings, object attributes & freedom to create any number of objects, events & scenarios.
Chaotic, Minimalist, Relaxing
Build absurd chain reactions with co-op friends: up to 8 of you in the Maker Lab placing parts, critters, and gears until a ball finally lands where it should. With over 200 puzzles plus Workshop levels, it is an easy, funny game to tinker with together.
Chaotic, Funny, Replayable
Invent a new computer! Logic World is a first-person sandbox simulation game that's all about digital logic. Play alone or with friends, design unique machines, build up layers of complexity, and experience the joy of circuits!
Replayable, Minimalist, Relaxing
A creative building-like game, where the objective is to throw physics enabled objects to create structures to allow the objective of the level to be completed. Can be a very challenging puzzler or an easy, sit back and relax game. Includes built in Level Editor and extensive Multiplayer functionality.
Chaotic, Funny, Replayable
Garry's Mod is a physics sandbox with no goals, only tools and toys.
Chaotic, Funny, Replayable

A relaxing falling-sand pixel sandbox with circuits and playable stickmen.

Build and play with others with a physics based sandbox created in unreal engine 5

A physics sandbox voxel-based simulation game for you to mess with. Build world you can imagine and destroy anything you create.

Create your own level with your friends online in the sandbox mode, play the mini-games, ragdoll, drive a car, fly with a Jetpack, fart to go…

Put your creativity to the test! Use the in game tools to build a purely physics driven level.

Ragdoll Madness, is a physics based game. Complete levels with your Physics based Character! You can create your own Map and Mods!

Build incredible machines with scrap parts, navigate the wildest Amusement park rides and challenge iconic creepy Neighbor and his evil bots!

An open multiplayer sandbox game; includes tools, props, levels, NPCs, character models, game-modes and much more! Make your own using our mod kit!

Dumb Ways to Build hands you and three co-op friends a nail gun, a pile of loose junk, and jobs no sane crew would take.

Blow stuff up! Part casual destruction simulator, part fiendish puzzle game.

Multiplayer sandbox with destructible environment. Destroy different maps, build your own, and play with your friends and other people online

Developed by the creator of the original Kerbal Space Program, KitHack Model Club is a physics-based model building sandbox that offers limitless…

Dumb Ways to Build hands you and three co-op friends a nail gun, a pile of loose junk, and jobs no sane crew would take.

Build ridiculous rovers with co-op friends and haul awkward cargo across Mars.

Lay of the Land is a voxel sandbox where fire spreads, sand slides, water carves valleys and roofs fall on monsters.

A relaxing falling-sand pixel sandbox with circuits and playable stickmen.

Brickadia is a brick-building sandbox where you and co-op friends build cities, vehicles and working contraptions together in real-time, then turn…

Archean is a first-person engineering sandbox where you and co-op friends gather ore, craft parts, and build planes, boats, and spacecraft that fly…

Invent a new computer! Logic World is a first-person sandbox simulation game that's all about digital logic.

Developed by the creator of the original Kerbal Space Program, KitHack Model Club is a physics-based model building sandbox that offers limitless…

Main Assembly is a robot-building sandbox where you shape chassis, bolt on parts, and wire up behavior with visual programming.

Fireworks Mania is a casual sandbox for messing around with fireworks, solo or with co-op friends in community-hosted games.

A first-person city-building game with powerful tools that allow you to build faster and bigger.

Multiplayer sandbox with destructible environment. Destroy different maps, build your own, and play with your friends and other people online

Patching is programming made physical: Build games, instruments, machines and interactive worlds by patching sound, visuals, logic and physics…

Dumb Ways to Build hands you and three co-op friends a nail gun, a pile of loose junk, and jobs no sane crew would take.

A rage-inducing physics platformer where you control a potato through absurd obstacles. Fall, fail, scream… and try again.

Crash-land as a robot mechanic on a farm planet gone wrong, then team up with co-op friends to build vehicles, grow crops, and hold off waves of…

Chemp Physics is a multiplayer VR sandbox game where you are only limited by your imagination.

Slap together ridiculous structures with sticky hands and outlast one disaster after another, alone or with up to five friends.

MoSimulator puts you behind the controls of student robotics machines in fast, arcade-style matches.

Build a plane, car, or forklift with friends, then take it racing, dogfighting, or just cruising the islands together.

Lay of the Land is a voxel sandbox where fire spreads, sand slides, water carves valleys and roofs fall on monsters.

A 2D multiplayer sandbox game revolving around industry, innovation, factions, combat and emergent gameplay.

Draw your robot, play as your drawing! Face your friends in Scribble Bots, a 2D, physics based sandbox party game.

Build ridiculous rovers with co-op friends and haul awkward cargo across Mars.