Planet Architect
A planet-building sandbox where you create entire worlds from the ground up. Generate unique planets, shape vast landscapes, and use interconnected simulations inspired by real-world processes to bring your fantasy planet to life.
The top results based on the latest update are Universe Sandbox Legacy [Score: 1.1], Biosphere Simulator [Score: 1.1] and Universe Sandbox [Score: 1.1] The top rated games you can find here are Kerbal Space Program [SteamPeek Rating: 11.4] ranked #10, No Man's Sky [SteamPeek Rating: 11.0] ranked #32 and Universe Sandbox [SteamPeek Rating: 10.0] ranked #3 Also don't forget to check the newest releases Solar Expanse - Space Exploration Manager [Release date: 2026-04-09] ranked #23, Inspiral: Echoes of Gravity [Release date: 2025-11-08] ranked #12 and Meco Rocket Simulator [Release date: 2025-07-14] ranked #25 While it is tempting to play with the newest and the best, there might be some other gems in the results, like Solar 2 [SteamPeek Rating: 6.7] ranked #17, Space Engineers 2 [SteamPeek Rating: 6.5] ranked #18 and Solar Expanse - Space Exploration Manager [SteamPeek Rating: 6.3] ranked #23.
A planet-building sandbox where you create entire worlds from the ground up. Generate unique planets, shape vast landscapes, and use interconnected simulations inspired by real-world processes to bring your fantasy planet to life.
Create and destroy on a scale you’ve never imagined!
Cast the Spark of Life into an empty ocean and watch deep time do the rest. Microbes become fish, fish crawl ashore, and one day something wakes up and builds a civilization. Nudge the world with god powers, then see if anyone makes it to the stars.
Create & destroy on an unimaginable scale with a realistic physics-based space simulator. Explore the beauty of our universe and the fragility of our planet. Use science to bend the laws of gravity, collide planets, boil away oceans, fire epic space lasers, and customize your universe.
Take part in a space program. Design spacecrafts and send them off to explore the vast expanses of space. Experience the real scale of the Solar system and the size of its celestial bodies.
A physics-based mining sim, set in the thickest debris field in Sol. Every action has a reaction, lasers are invisible without a medium, and your thrust is a potent weapon. Find trade, adapt your equipment to your playstyle, hire a crew to help. Unravel the mysteries of the rings, or just get rich.
Solo Indie delivers a local 1-4 player split-screen physics-based create and combat sandbox with scientific tools for PvP or PvE. Replay many unique campaigns. Master your hex build strategy, microscopes, and chemistry skills. Be clever to achieve victory and learn as you go. !!! FREE DEMO !!!
Draw on a planet and watch physics answer. A climate, ocean and erosion simulator you can edit with a brush — dry the Mediterranean, green the Sahara, stall the Atlantic conveyor. 38 scenarios across the Solar System, Cretaceous Earth and five real exoplanet systems.
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!
In Spaceflight Simulator, you will get to build your rockets, plan launches and flights, attempt landings, deploy payloads and explore new worlds.
In Kerbal Space Program, take charge of the space program for the alien race known as the Kerbals. You have access to an array of parts to assemble fully-functional spacecraft that flies (or doesn’t) based on realistic aerodynamic and orbital physics.
Gaze into nature's greatest abyss. Explore a real-time black hole simulation with true gravitational lensing, a volumetric accretion disk, orbiting worlds, and cinematic relativistic effects.
Start as an asteroid, grow by absorbing other celestial bodies to become a planet, a star, and ultimately a black hole. Experience realistic gravity and orbital physics in an ever-evolving sandbox universe.
Kerbal Space Program 2 is the sequel to the acclaimed space-flight simulation game Kerbal Space Program. Enter the next generation of space adventure with exciting new parts, stunning visuals, fully revamped UI and Map View, and rich new environments to explore.
Explore a scientifically accurate Milky Way galaxy and discover distant uncharted worlds, while having unrestricted access to every deck of your Magellan Class deep space exploration vessel. Interact with numerous fully simulated ship systems, or simply relax in the bar and watch the stars drift by.
Lead humanity’s final journey beyond Earth. Launch ships, harness gravity slingshots, and explore distant star systems to make humanity multi-planetary.
Master the cockpit of highly realistic spacecraft in this Newtonian physics based sim. Take off from surface to space, plot a course between the planets and dock with space stations. Trade commodities or take shipping contracts to buy upgrades and optimize your build - every choice matters.
Dynamic abstract sandbox universe. Changes and evolves as you do.
Space Engineers 2 is a playable Early Access Alpha sandbox focused on engineering, exploration, and colonization in a fully destructible universe. Design and build ships, stations, and planetary bases while uncovering the story of Miro and Ivan Sokol. Help shape the future of the Almagest system.
Build rockets and fly them around the Solar System in this realistic aerospace sandbox. Attempt landings, build space stations, drive rovers, perform spacewalks, explore alien worlds, and get your crew home safe.
Overview is a mind-changing experience about our position in the Universe. With a narrative and an interactive mode, it features realistic imagery and accurate data to leave you in awe and wonder at the vastness of the Cosmos.
A sci-fi settlement building game with orbital mechanics. Start from a spaceship, scan asteroids, manage fuel, ore, electricity, time, and sanity, while expanding your settlement, exploring an alien solar system, and building stations and spacecraft to support your growing colony.
Become a pioneer of spaceflight. As an engineer in the Soviet Space Program you will be responsible for repairing, fixing and building the iconic spacecraft and rockets from the R-7 family.
Explore the Solar System. Mine and drop asteroids. Colonize and terraform. Lead the space race and compete with other corporations on your way to profit. Watch the expansion of human race over the centuries.
A space sim survival where each decision costs power. Every system drains your dying reactor. Pilot a crippled spacecraft across a real-scale solar system using true orbital mechanics, manage critical systems, scavenge for resources, while you try to uncover why humanity seems to have disappeared.
Design real rocket engines with real physics, no black boxes. You're an underpaid engineer at Mecodyne, building engines that fire only if they'd work for real, without regard for your safety. A serious engineering sim that teaches by doing. Built solo.
Space Travellers is a unique open-world sandbox space simulator set in the year 2343. Travel the galaxy, trade, explore unexplored worlds, fight, build bases and factories, forge alliances and experience new adventures!
Launch from a familiar world into a 1:1 scale solar system of beautiful, unforgiving planets. Colonise, mine, and explore real places that people may walk upon within your lifetime. Project Longshot hands you a space program and asks only one question. How far can your program go?
The world's first science-based photorealistic interactive 3D planetarium that models the entire Universe, using procedural generation for uncharted areas.
Pebble to Star is an idle growth game. Swallow the bodies that drift past and raise a grey pebble into a planet, a star, even a black hole and a galaxy, immersed in an ever-changing universe.
Realistic space flight simulator.
A simple black hole simulator.
No Man's Sky is a game about exploration and survival in an infinite procedurally generated universe.
Design and then improve the ultimate mothership. Explore a persistent living galaxy populated by 200 unique captains that can do everything you can do. Survive the zombie infection and then fight them back. Make allies and start your own faction. Build your empire. Also includes Sandbox Mode.
After a century in cryosleep you find yourself stranded amidst the ruins of mankind’s first interstellar colony. Explore derelict ships and stations and harvest raw resources in search of air, fuel and other equipment. Or loot and pillage what you need from other survivors. The choice is yours!
Gravity and exploration sandbox
The conquest of the Solar System has begun – prove yourself as a space colonist! Pilot the spaceship, choose the planet you wish to inhabit and build your new home. However, remember that there are no rules or laws in outer space. Don't underestimate the danger and stay vigilant – enemies are near!
Promote your game here: [email protected]