Antimatter
Antimatter is a sandbox strategy game, colonise planets, build your city on the surface or the underground. Build your spacestation or control your own spaceships to explore a huge and living galaxy !
The top results based on the latest update are Order: The New Dawn [Score: 1.1], Starship Colony [Score: 1.1] and Solargene [Score: 1.1] The top rated games you can find here are Dwarf Fortress [SteamPeek Rating: 9.5] ranked #5, Against the Storm [SteamPeek Rating: 9.3] ranked #8 and Manor Lords [SteamPeek Rating: 9.2] ranked #4 Also don't forget to check the newest releases A Planet of Mine MasterMine Edition [Release date: 2025-11-11] ranked #36, Whiskerwood [Release date: 2025-11-06] ranked #13 and Super Fantasy Kingdom [Release date: 2025-10-24] ranked #15 While it is tempting to play with the newest and the best, there might be some other gems in the results, like Reshaping Mars [SteamPeek Rating: 5.6] ranked #12, Whiskerwood [SteamPeek Rating: 6.6] ranked #13 and Super Fantasy Kingdom [SteamPeek Rating: 6.4] ranked #15.
Antimatter is a sandbox strategy game, colonise planets, build your city on the surface or the underground. Build your spacestation or control your own spaceships to explore a huge and living galaxy !
Order: The New Dawn is a colony sim with space adventure. As a legendary captain from the United Stellar, build a base on the desert planet New Terra and face the perils of the Wastespace—how will you shape the destiny of the stars?
A deep starship colony sim. Build your starship, manage air, water, food, fuel, energy, temperature and psychology to keep your crew alive across vast distances. Closed-loop system in space. Mining, wiring, plumbing, in-ship factory, (alien?) radio signals & translation, diplomacy, combat, and more.
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
Manor Lords is a medieval strategy game featuring in-depth city building, large-scale tactical battles, and complex economic and social simulations. Rule your lands as a medieval lord – the seasons pass, the weather changes, and cities rise and fall.
The deepest, most intricate simulation of a world that's ever been created. The legendary Dwarf Fortress is now on Steam. Build a fortress and try to help your dwarves survive against a deeply generated world.
Lead your noble family in this medieval colony sim, facing off against class conflict, religious struggle, and political treachery. Tend to your people’s needs, uncover the lost knowledge of a fallen empire, and engage in nefarious plots against your enemies.
Turn-Based 4X-like Strategy: Build the peaceful kingdom of Atlantis into a flourishing civilization. Plan carefully or be ready to adapt as the ancient Gods of Olympus rain down floods, earthquakes, volcanoes and all types of disaster.
A dark fantasy city builder where you must rebuild civilization in the face of apocalyptic rains. As the Queen’s Viceroy, lead humans, beavers, lizards, foxes, and harpies to reclaim the wilderness and secure a future for civilization's last survivors.
The Final Earth 2 is a vertical sci-fi city builder. Earth is unlivable, so you decide to create a space colony. Gather resources, then build and research your way to a better future! Grow your city from an exploration ship to a huge metropolis, full of advanced technology. What will you build?
Build a soviet republic from an impoverished country into a rich industrial superpower in a city builder with intricate production chains and a fully simulated global economy. Manage the lives of your citizens from education to work and party loyalty to criminal activity.
Command swarms of warriors at an unprecedented scale of warfare in this blend of RTS and base-building. Lead ant colonies against the many fearsome threats of the insect world, while building intricate nests, developing pheromone-based tactics, and evolving to meet growing dangers.
「Reshaping Mars」is a colony simulation game on Mars, you will start by gathering resources, storing food, accepting immigrants, and building a better colony together. Develop powerful technologies for Mars Reshaping, make Mars great agai..sorry, just great. Don't forget to make the residents happy.
Establish a home for your industrious mice under the oppressive paw of your cat overlords in this city builder featuring complex simulations, intricate production chains, and the age-old rivalry between cat and mouse.
Gate Builders is a sci-fi turn-based 4X strategy game. Build space stations, manage work force, exploit, trade and transform resources. Face space pirates and enemy factions. Build, Expand, Thrive!
Rebuild your kingdom and explore a vibrant fantasy world in this roguelite city builder. Defeat hordes of monsters with a unique team of defenders as you harvest, build, mine, cook, brew, and grow. But if your defenses should fail, be prepared to watch it all burn!
An open-world colony sim based on stories of the first men. Infinite possibilities await your very own Adam and Eve as they embark on a generation-spanning adventure. How will you shape their future?
Architect of Ruin is a completely hand drawn sword and sorcery colony simulation game. Farm, hunt, build, and survive as you rebuild an ancient temple under the gaze of a vengeful god.
Sci-fi idle strategy in isometric view: build structures, gather resources, and trade with ships while exploring your plot of land cell by cell.
From a humble campfire to a multi-city kingdom, lead with grace in RAEV: Kingdom on the Distant Shores: a unique kingdom builder where every decision shapes the fate of your fox citizens and the legacy of your continent-spanning kingdom. With a freeform building system, no grids, no limits.
There will be challenges to overcome. Execute your strategy and improve your colony’s chances of survival while unlocking the mysteries of this alien world. Are you ready? Mars is waiting for you.
Times of Progress is a City Builder set during the Industrial Revolution. Build industries to extract natural resources. Produce goods to satisfy the population. Manage transportation routes by train and ship. Expand on procedurally generated maps and trade with nearby cities.
Build a city on the back of a Space Whale and learn to coexist as you journey through the stars. Manage intricate supply chains and the needs of your people as you build outposts, meet aliens, and uncover the mysteries of the universe.
Synthaar is a game where Life Simulation meets Grand Strategy. Create your legacy, build your home, business, base and beyond, and accumulate power and wealth to ensure your descendants have a prosperous future under your care.
AstroCore Mining puts you in charge of a colony where profit is everything and survival is fragile. Extract resources, balance factions, and face pirates and unrest. Lead not just a colony but the future of a nation in the brutal reality of space capitalism. Join to the Playtest now!
Kolo is a medieval settlement simulator where you lead a group of adventurers ready to start a new life in the wilderness.
Starfall Protocol is a Starship colony sim with RPG adventures in a galaxy with millions of explorable planets!🌌
A Planet of Mine is a mini procedural 4X. Starting from a single and unique planet, survive, gather and combine resources, develop your technologies and start the conquest of space.
Become the hive mind of a robot ant colony in Microtopia! Use pheromone trails to create, automate and optimize supply chains for your ants to follow. Collect resources, produce goods, feed your queen, grow your colony and fly out to expand the species!
Green Again is a relaxing colony simulation game. Help a tribe of little plant people reclaim their planet taken over by defective robots. Build, decorate, and expand your settlement. Grow crops for your citizens, explore the unknown, and return the land to its former green state!
Welcome to Resort Galactica, a hotel simulator set in space where you design, build, and manage an extravagant resort among the stars. Care for your guests based on each species' individual needs. Expand your hotel with restaurants, leisure centres, and entertainment floors.
ATC is a base building game set in a post-apocalyptic world featuring urban environments. Build a base across several layers with dozens of survivors. Fight other factions for the control of the remaining production centers and explore the world to find long forgotten resources and technologies.
Powerplay is an RTS with a focus on resources and industry. Create supply chains, transport, and explore in this thrilling base builder. Grow into a powerful industrial nation, but don't spread too thin! Resources are finite and "the others" can reclaim what is theirs at any time.
"SandTable War: Three Kingdoms" is a strategic simulation game set during the Three Kingdoms period. Here you can play as various factions from Three Kingdoms history to conquer cities and lands, unify the realm. With abundant historical officers and scenarios, come restore the Han Dynasty!
Build and manage space outposts on the Moon and Mars in this realistic simulation game. From the first step on the Moon to Mars colonization, launch rockets, take care of your astronauts and expand your base as you explore the cosmos. No grind, just pure management and exploration fun.
Stellar Settlers is a chill space base/city builder and colony sim game. With unique vertical and horizontal base-building gameplay, settle on 10 hostile alien planets and build your own thriving colony. Get enough materials to build a physics-based Spaceship and try to escape from disasters.
A Planet of Mine Mastermine Edition is a cozy 4X game with mass strategy! Choose your winning gang, mastermine resources, and build your base and tools to boost your technology and conquer space! Unless your neighbors don’t see it that way… Trade, peace or clash: your planet, your choice!
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