Top similar games like Cosmic Composer:

Before We Leave is a city building game set in a cozy corner of the universe. Nurture your Peeps and their surroundings while rebuilding and rediscovering civilisation. Settle new lands and planets while avoiding hungry Space Whales.

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.

Curiosmos is a whimsical space sim where you build your own solar system by crafting planets, gravity, atmosphere, and life! Embark on an adventure to discover the secrets of the universe in this charming ode to outer space ✶

Design the perfect automated defense system for the city in this physics-based game. Destroy the falling celestial objects with turrets, fire, lightning, portals, and more! Each level will challenge your ingenuity and creativity.

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.

Equipped with cutting-edge salvaging tech, carve & slice spaceships to recover valuable materials. Upgrade your gear to take on more lucrative contracts and pay your billion credits debt to LYNX Corp!

Space Worthy is a survival game focused on building spaceships. You start on a primitive planet, with acient technology, and craft your way into stars! Dig in the ground, smelt metals, build machines, houses, vehicles and spaceships!

Do you enjoy playing around with the physics in games? Then this is the game for you. Stack Masters is built around exploring that concept in a competitive way. Including a built in level editor and Steam Workshop support, the game offers a never ending supply of physics sandbox gameplay to explore.

In this puzzle-adventure, use an intuitive brick-by-brick building mechanic to solve puzzles and bring your creations to life! Experience a charming story as you explore beautiful LEGO® dioramas and help the people inhabiting them.

An orbital mashup of physics, puzzles, and business simulation! Navigate packages through a galaxy using gravity and tools like slingshots, mass drivers, and cannons. Create your own levels & share them with the world via Steam Workshop. The ultimate space delivery challenge awaits!

Colorgrid is a puzzle game about mixing colors in a Lab. Find the correct positions for your lasers and mirrors to get the right mix of colors in each material.

Real-time planetary collision sandbox powered by SPH physics: smash planets together and watch the destruction and its aftermath!

Build your ship - go through obstacles - build a bigger ship - profit. SpaceBlocc is a short colorful minimalistic spaceship building game

Design, build and control your own space station. Mission command and control is in your hands and only careful planning and vigilant supervision will keep your crew and space station safe.

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

The world's first science-based photorealistic interactive 3D planetarium that models the entire Universe, using procedural generation for uncharted areas.

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.

Build sand castles, reshape the shore and blast your defences apart in a living water-and-sand physics sandbox across 25 maps. Dig channels, redirect waves and tune erosion. Single-player at launch; castle-versus-castle PvP is planned for a later update.

Shape breathtaking worlds in Terra Firma 2, a vast simulation where your creations evolve through the forces of nature. Sculpt the land, then watch as weather, erosion, and life itself transform your world into a dynamic, living ecosystem- right down to every plant and creature.

Watch your rocket climb off the pad, follow it to orbit, and look through the hull as your guests float into their rooms. A relaxed 3D tycoon game about building space hotels one module at a time, from low Earth orbit to the Moon, Mars and Saturn.

Sky Settlers is a minimalistic city building card game in which you build on islands in the sky and encounter different events, disasters and much more. Use different cards, complete quests and unlock new tiles as you progress.

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.

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.

Grow real plants in your own microgravity cube-sat terrarium. Build, prune, water, harvest, and learn botany through a simulation based on real behavior.

This digital experience doesn’t ask you for much, it just wants you to come as you are. Bring your favorite edibles, mushrooms, music, and Relax. Consider using it for meditation and reflection. A title perfect for those nights when you want to float off into space and forget about things.

Build rockets, launch payloads and explore the Solar System in a physics-based space simulation. Unlock parts through launch objectives, develop stations and planetary outposts, then discover orbital mechanics, astronomy and the light-bending gravity of a black hole.

Build a factory around a black hole. Extract elements, route atoms through Matter Tubes, bond them using valence-driven chemistry, and scale precise molecular production lines atom by atom.

As CEO, build a ruthless corporate empire! Solve spatial factory puzzles, master complex supply chains, and manipulate dynamic markets to maximise profit. Mobilise local workforces, fund high-tech R&D, and construct colossal megaprojects to satisfy your demanding Parent Company.

Run your own supermarket in outer space. Keep shelves stocked and nicely organized. Supply your store with drone delivery. Will you take the duty of running a space supermarket?

Survive in the skies of Venus with your floating colony as you balance buoyancy, mass, and altitude. Launch balloons and probes to explore the planet while harvesting resources from the atmosphere. Build up your colony and thrive in a simulation based on real science. Venus awaits.

Facteroids is a 3D factory building game about asteroid mining in space. Prospect, mine and manage your production lines in a variety of scenarios and procedurally generated worlds across the entire Solar system.

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.

Lonely House is a cozy little game about home decorating. It's just you, pleasant music, and a solitary building at a crossroads. Decorate it to your liking and forget about your troubles.

Use the Nimbatus Drone Creator to construct physically simulated drones and try them out in a virtual testing environment. Do you have what it takes to become a drone engineer?

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.

Stellar Routes is a transportation management game set in space! Draw routes between planets and watch as ships transport aliens across the system. Buy, upgrade, and slingshot ships to ridiculous speeds to get these aliens home before they are cast adrift.