Universe Sandbox

Create and destroy on a scale you’ve never imagined!

Create and destroy on an unimaginable scale... with a space simulator that merges real-time gravity, climate, collision, and material interactions to reveal the beauty of our universe and the fragility of our planet. Includes VR support for HTC Vive, Oculus Rift+Touch, and Windows Mixed Reality.

SimpleRockets was released in 2013 for mobile and a ton of work was put into getting it ready for PC and Mac. It was inspired by KSP, and it offers a simpler 2D experience for building rockets and exploring space with realistic orbital mechanics.

Unleash your engineering creativity with an engaging and fresh bridge-building simulator with all the bells and whistles. Enjoy hours of physics-based puzzle solving in the Campaign and then jump in the Sandbox to create your own bridge designs and puzzles. Challenge friends and the rest of the Steam Workshop community to solve your puzzles and download more levels submitted by other players.

Explore and get to know the PK XD universe, an open-world multiplayer game for you to experience incredible adventures!

SpaceEngine is a 3D astronomy program and game engine developed by Russian astronomer and programmer Vladimir Romanyuk. Using real astronomical catalogs and procedural generation, it creates a three dimensional planetarium representing the entire universe. Users can travel through space in any direction or speed, and forwards or backwards in time. It uses pseudo-random numbers to procedurally create any kind of planetary system, nebula or galaxy.

Build rockets, airplanes, cars, and anything you can think of with highly customizable parts. Automate them with a visual programming language. Explore 3D planets and make your own. Share your creations online.

Dynamic abstract sandbox universe. Changes and evolves as you do.

Dive into a factory-building game where the focus is on just that — building huge factories! Construct sprawling multi-level factories and min-max your layouts without limits. Shapez 2 is tailor-made for enthusiasts who crave the thrill of optimizing production lines and perfecting automation.

As an engineer of Dyson Sphere Program, you will go to an alien galaxy building “Dyson Sphere”. Collecting resources, plan and designing production lines, gradually create a full automated factory. Develop your factory from a small workshop to a huge cross-galaxy Industrial empire.

Microsoft Space Simulator is a space flight simulator program, based on Microsoft Flight Simulator for MS-DOS. It was one of the first general-purpose space flight simulators and it incorporated concepts from astrodynamics and celestial mechanics.

Dual Universe is a Continuous Single-Shard sandbox MMORPG taking place in a vast Sci-Fi universe, focusing on emergent gameplay with player-driven in-game economy, politics, trade and warfare. Players can freely modify the voxel-based universe by creating structures, spaceships or giant orbital stations, giving birth to empires and civilizations.