Games like Spacetime Dimension

Once Upon The Universe is a god-game that takes you to the VERY beginning of creation. You begin the game just after the big bang, with nothing but an empty space and a lot of super hot hydrogen in the entire universe. Fill the universe with life and watch it thrive - or destory it.

POWDR is a high performance interactive particle sandbox featuring realistic fluids, sands, solids, interactions, and more! Every pixel is simulated. Every material interacts. Every experiment can become a catastrophe.

Navigate your scrappy ship through the boneyard in search of valuable parts in abandoned vessels. Use salvage to upgrade your ship, or sell it for cash to pay down your mounting debt, or restock fuel, air, or food. Fly and role-play aboard your dream spaceship in this hardcore noir space-sim.

The Last Starship is a 2D space construction game where you design and upgrade your starship. Choose your path: pirate hunter, miner, engineer, spacebus driver, and more, whilst exploring vibrant star systems. Enjoy a growing sandbox world, with regular free updates. Your cosmic adventure awaits!

This is an incremental game where you become a cozy destroyer of worlds.

The game "Terraspace" offers you a unique experience of planet settlement and terraforming — creating conditions for life on unsuitable planets. This will require you to build the necessary structures to populate the planet.

Do you have what it takes to become an astronaut? Reentry is a realistic space flight simulator inspired by the early NASA space programs, from orbiting Earth in Mercury and Gemini, to the moon landing in project Apollo. Learn the procedures. Operate the spacecraft. Complete the mission.

Kairos: In Step with Time is an experimental interactive experience about time, cosmic order, and human response. Align the time ring, answer six moments of change, and let your final hexagram emerge from the rhythm of the universe.

Online voxel sandbox where you can build anything imaginable. Forget simple cubes – sculpt slopes, curves, and structures of any size with many realistic materials. Your imagination is the only limit!

Embark on a journey to greatness. Get ready for adrenaline-fueled battles and a chance to claim your place in the galaxy. Grab the controls of your ship, gear up for the fight, and unleash your ambition to conquer and build a new empire in the vastness of space.

Take Command of a Space Corporation in the Sci-Fi Simulator Solargene! Manage personnel, design and develop colonies and orbital stations across the solar system! Mine resources, establish logistics, research cutting-edge technologies, trade, and complete missions

A Sci-Fi role-playing game featuring turn-based ground combat, space exploration, deep character customization and a massive living universe with thousands of star systems. Equip your ships with the best equipment you can find, gather a powerful crew of mercenaries and set out into the void!

Play a major role in an evolving simulation of simulations. Explore endless 2D and 3D dimensions spanning nearly every game genre, with 50+ experimental prototypes and stories whose worlds, systems, discoveries, and ideas can become part of the greater experience.

BOXROOM allows you to design, define and decorate a room - a sanctuary - for your Steam library, and then revel in the organisation of your game collection.

Explore endless Universe and create the most efficient constellation of colonies. Build conveyor systems to automate production. Take care of Astronauts and their needs! Establish new colonies as part of intergalactic simulation.

Embark on a space voyage with your ragtag crew of civilians in search of a new home. Build spaceships tile by tile, create optimal gas conditions, manage the needs and moods of their crew, encounter other space-faring groups, and explore the universe in this spaceship colony simulation.

Eden Crafters is a solo or co-op open-world survival, crafting, and factory-building game where you transform a hostile planet into a habitable haven for humanity. Build, automate, and terraform. Control the climate, create a breathable atmosphere, and turn toxic lakes into water: shape a new world!

Shape a living god-sim where every spark is a soul. Zoom from one life to a whole world that curls into a torus; raise land, call rain, touch one fate, and ask why any place became itself. Choose what endures; the Chronicle remembers what your hand preserved.

A bullet heaven roguelite set in a procedurally generated universe. Land on planets to harvest resources, craft hundreds of game-breaking builds, and unleash them on relentless waves of aliens. Every run unveils a new universe: endless challenges, endless discoveries.

SINGULARITY is a collection of 61 distinct games — from particle dreamscapes and detective puzzles to tactical combat and survival farming. Collect Embers in every level to grow and unlock more. The Particle Eggs keep expanding over time, so the journey never ends.

A first-person sci-fi cargo flight sim. Pilot a physics-driven lander, plan risky routes, manage fuel and heavy cargo, and save deliveries by repairing system failures mid-flight. Earn credits and upgrade your ship.

Welcome to a vast, social sandbox MMO inspired by the legends of the medieval era. Here, myths are real, ghosts exist, and magic is unquestioned. Join thousands of players as you explore the land, build your home, forge your reputation, and craft your own stories. What world will you make?

Explore and mine fully destructible worlds. Automate increasingly complex production chains. Delve deep to uncover an ancient civilization’s powerful secrets and learn to love the sand in this factory game where every pixel is a valuable resource.

Build physically simulated rovers to transport awkwardly shaped cargo across the rugged terrain of Mars. Earn funds, unlock new parts, and use your ingenuity to help the Martians establish a new home. Playable solo or in online co-op!

Starship Theory is a ship building survival game. Mine and trade to gather resources. Plan and construct new upgrades. Train and manage crew. Fight to survive.

Program a crew of tiny robots to turn a frozen planet into a living world. Connect visual code blocks, automate crafting, and build a workforce that fuels itself. Keep the heat flowing, refine your machines, and watch your ideas come to life.

《学生时代》是一款可自由构筑的校园人生模拟器。你将在高度还原的中国校园中，从入学一路走到高考，与多个性格鲜明的同学一起成长，互相陪伴。你的养成和选择，不但会决定你的人生，也会影响到朋友们的未来。

A physics sandbox built on real chemistry. Drop 674 materials into a falling-sand world and watch them react, burn, freeze and explode. Then wire circuits, test wings in a wind tunnel, or split light through lenses — alone or with friends online.

The Endless Sky es un juego online en tiempo real de exploración espacial en un universo generado de manera procedural. Descubre todo un universo. Sistemas, planetas, lunas, flora, fauna, civilizaciones y mucho más!

An alien invasion has fractured humanity into seven ideological factions each with a unique vision for the future. Lead your chosen faction to take control of Earth’s nations, expand across the Solar System, and battle enemy fleets in tactical combat.

High intensity co-op roguelite space adventure party game for 2–4 players (or bots). Take on crew jobs, keep a failing ship alive, and survive procedural missions with endless exploration, light RPG progression, and real-time crisis gameplay.

Dive into a factory-building game with the focus on just that – building huge space factories! Design sprawling multi-level factories and satisfying production lines without limits. Tackle progressively challenging automation goals at your own pace, without the threat of enemies.

Build and automate a lunar colony that Earth depends on. Mine regolith, run conveyor-and-drone factories above and below the surface, manage colonists, trade with rival Earth factions — and play a story campaign with multiple endings.

CELLS is a calm sci-fi trading game about goods, routes and decisions. Explore new worlds, build trade chains, mine resources and uncover the story of a broken network between the worlds.

Salt 2 is a pirate-themed open world adventure focused on exploration, crafting, and survival. Play solo or with up to 5 friends, sailing the sea with your ship as a mobile base. Discover islands full of quests, towns, caves, and secrets. Level up, craft gear, hunt, fish, and customize your ship.

"The Scroll of Taiwu" is an indie game themed around Chinese mythology and wuxia. Players assume the role of the mysterious "heir of the Taiwu clan" in an alternate ancient China, working through generations of heirs to defeat a powerful hereditary enemy and shape the fate of the human world.