RimWorld

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.

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.

Build your way to success! Trade your way to the top! Explore your way to infamy! Do it all your way!

Stardeus is a deep colony sim set on a broken starship manned by drones and hibernating human survivors. As the AI, have your drones repair your ship, save your crew and travel the stars in this beautiful simulation.

Manage interstellar pioneers and their descendants in this detailed sci-fi colony sim. Centuries after planetfall, colonists are still struggling to gain foothold on their lush and alien planet. You settle on the frontier by carefully managing resources, production and different personalities.

Obey protocol or go rogue as you take on the role of a powerful A.I. in Starmancer. Build bustling space ports, secret laboratories, and incubators for mysterious eggs. Defend against starvation, sabotage, and space zombies. Don't worry, you can always grow more humans.

Build a new home for humanity in Aven Colony. Discover Aven Prime - an alien planet of deserts, tundras, and wetlands light years from earth. Build your colonies into massive, sprawling cities whilst dealing with the challenges faced when settling on a new world.

Build a new home for your team of robots as they begin a new life for themselves on a distant planet where they can fulfil their ultimate dream: to be human.

In this game, you'll be the leader of an ancient tribe, guiding your people to explore the natural world, to hunt, and to farm. As culture and civilization prosper, you shall establish a tribal alliance, a community with a shared future of tribes.

Inspired by the deep simulation of Dwarf Fortress, the open world survival of Minecraft, and the social interactions of The Sims. Embark is a colony management game with a focus on complex simulation in a huge living 3D world.

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.

A sci-fi base building survival game, featuring raids, agriculture, intelligent AI, natural disasters and more.

A fantasy colony simulator set in an alternative universe where the privatization of space exploration has led to the commoditization of clone colonists. You are tasked with establishing a self-sustainable colony and helping your faction survive the oncoming Holy Crusade led by Sentient Machine.

Planet Explorers is an open world sandbox adventure RPG game set on a distant planet. The game uses a new OpenCL calculated voxel system to allow players to change the terrain in any way, create new objects such as weapons, vehicles, objects, and do it anywhere.

Explore a forgotten galaxy full of different planets, venture deeper into the planet to mine for rare resources, craft items to fix your ship, and discover ancient secrets and life forms. An exploration (survival) game like no other.. Adventure awaits!

Stranded on Mars with next to nothing, build a city, assemble a fleet, and expand your empire to survive a hostile solar system in this new take that combines elements of space combat and RTS inspired by the classics.

Outpost Zero blends the genres of Multiplayer Base Building Survival and Simulation games in a Sci-Fi universe. On a lawless alien world, robotic scouts are tasked with building an Outpost for human colonists. Command AI minions, colonize the planet, and survive the perils of Gaiya.

A colony building game with an emphasis on unexpected events, online co-op, and managing a unique community. Build your colony, feed your colonists, research technologies, craft advanced weapons, explore the world, fight enemies and defend your property.

In this sci-fi strategy sim you build up global civilizations on distant worlds. Harvest resources and produce goods to establish space trade. Form alliances or wage economic warfare to take over competing corporations. Do research to protect your colonists from disasters and avoid a climate crisis.

GearStorm - Armored Survival is a story-driven, open-world sci-fi survival adventure. Discover what led to the Phage, a deadly virus apocalypse and our escape to a alien world. Explore a vast alien planet, build your base, create your colony, acquire vehicles, weapons, and supplies to defend it.