Top similar games like Gaia Maker:

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

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.

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.

The epic story of evolution, technology, humanity, and dinosaurs is yours to tap.

Watch empires rise and fall, or intervene with godly powers, in GalactiWar, a space empire simulation sandbox game.

My Little Cosmos is a light idle clicker game that runs quietly in the background. Keyboard input and mouse clicks from everyday computer use automatically drive the evolution of a universe, with inventory rewards dropping over time.

Grab planets, set them in orbit, and nurture life in PLANETOON, a galaxy-building puzzle sim. Discover cosmic surprises and over 60 endings. Complete the ending collection to unlock Endless Mode, and see how far your own galaxy can grow.

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

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.

MiniEco is a cozy top-down nature sim that combines laid-back idle gameplay, hands-on ecosystem management, and a hint of god-like power. Nurture or disrupt evolving species, shape their habitats, and watch as thousands of organisms adapt—or clash—in real time.

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.

The Stars Are Never Still is a 2D space sandbox. Shape a galaxy and watch 16 unique races colonize, trade, ally, betray and wage war. Observe, or intervene with technology, aid, discord, disasters, new life—even black holes. Chronicle millennia of history. No set goals. No empire lasts forever.

Gridworld is an artificial life and evolution simulator. Watch creatures evolve through natural selection as they learn to find food, avoid danger, and compete with other creatures for survival.

Endless Sky is a 2D space trading and combat game inspired by the classic Escape Velocity series. Work your way up from a relatively wimpy shuttle, cargo ship, or fighter, to a highly upgraded and customized flagship or to a massive fleet of warships or freighters.

In Spaceflight Simulator, you will get to build your rockets, plan launches and flights, attempt landings, deploy payloads and explore new worlds.

You are neither a general nor a soldier — you are a Stellar Industrialist. To you, peace is nothing but shutdowns and losses. Venture to the frontlines, strip battlefields for wreckage and salvage, turn spoils into resources, and expand your interstellar arms empire.

You are a Scraponaut, create your own spaceplane with unique parts each affecting the way your plane behaves. Collect scrap while exploring procedurally generated islands, unlock and discover unique new parts to upgrade your spaceplane.

Funorbit is a space survival simulation with realistic physics, resource gathering, crafting, and building. Navigate a vast universe using orbital mechanics, encounter drifting meteoroids, and construct space stations to survive.

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 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.

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.

A single-player 2D top-down pixel game with space physics. Mine asteroids in the middle of an asteroid field using manual controls or by directing mining drones. Protect the outpost, buy from trading ships, mine as much ore as you can and survive as long as possible! Do you have what it takes?

Falling-sand sandbox game with 500+ elements, chemistry, fire, life, food, and anything you can imagine.

Mesmerizing incremental idle clicker game about space. When objects collide, you receive matter. Use this matter to unlock and upgrade objects in your star system. Use powerful Abilities. Dive into the Prestige system (Warp) with a wide Skill Tree, and discover new star systems with new bonuses.

A calm artificial-life sandbox where you seed tiny Neeblies into biomes, watch families and traits emerge, and preserve rare discoveries in your Lab. Shape the environment, run parallel ecosystems, and decide when to intervene or let evolution unfold.

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.

Use your godly powers to craft amazing pixel worlds or destroy the universe! Play with physics, over 200 elements and controllable heroes. Make your own games or levels, and then share your creations online. There are no limits to your creativity and imagination!

Build orbital factories, mine asteroids & trade with aliens in this deep space strategy game! Research tech, manage production chains, and choose: peaceful trade or combat when mysterious ships arrive. The ultimate industrial space empire simulator!

Watch as stars battle for control of a simple simulated galaxy. Each star belongs to a faction, indicated by its color, and combat happens automatically between neighboring stars. Your role is to observe the dynamic battlefield as stars change ownership.

Build machines, trigger chain reactions, and throw planets at each other. SPS combines flowing particles with rigidbody physics at scales from centimeters to thousands of kilometers. Run that experiment you've always wanted without burning down your house.

A 2D space agency simulator where every object follows the same orbital physics. Land on moons, build colonies, deploy satellites, and reshape entire planetary systems. Deorbit a moon if you want.

Explore a seed-driven galaxy where every ship, planet, and dungeon is generated at runtime. Dogfight pirate wings, land on 20 kinds of worlds, raid surface sites on foot, and build a fleet from salvaged hulls, solo or in Steam co-op. The same seed rebuilds the same galaxy, every time.

Master physics in one compelling physics puzzle after another. Aim the launcher and adjust its power, using your understanding of gravity wells to correctly plot their courses in a variety of challenges. Complete a light-hearted story and then test yourself in the endless Expeditions mode.

A rocket simulation game inspired by SpaceX's rocket recovery technology: Precisely control rocket engines, plan launches, complete missions, secure government funding, deliver supplies to Mars, and ultimately achieve Mars terraforming and human colonization.

A small quick game about building a factory to launch planets into a solar system! Grow your base and increase production to make the ultimate factory for launching planets!

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.