Games like Space Outpost Sigma

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.

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!

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.

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.

Dig mines, extract resources, and produce goods to restore order to the state. Become a successful businessman and an effective state governor in the late Wild West era!

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.

A factory-building game. Survive a harsh climate, strip mine an infinite world, and build a sprawling factory, then trade or go to war with Colonists, Governments, Pirates, Rebels, and more!

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.

Become an unstoppable force in this intense high-speed space combat roguelike. Master the Specter Drive’s displacement dash, build a devastating arsenal with your companion Merlin, and grow more lethal with every mission as you spearhead the counter attack across a solar system under siege.

Fracture Field is an idle/incremental quarry mining game. Shatter rocks with timed swings then invest your earnings into upgrades. Build a fleet of drones to automate your empire, bomb tough layers, and unlock powerful prestige upgrades on your journey to master the quarry.

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.

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!

Mine by day, defend by night. Master 25+ spells, sell rare ores for gear upgrades, and grow stronger each run in this procedurally generated roguelite tower defense. Enjoy full controller and Steam Deck support.

Sublight is a space bullet heaven roguelike, where you captain a powerful warship and carve through escalating waves of enemies. Upgrade your arsenal, unlock new ships, and experiment with countless builds to dominate the battlefield.

Congratulations, you’ve bought your own planet! An agrarian rock at the edge of the galaxy that, for some reason, was practically being given away for free. So the time has come to leave your hectic, stressful life in an overcrowded metropolis for a more rural and rewarding life.

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.

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.

Mining Merchant is a relaxing mining and shopkeeping adventure game. Mine by day to uncover rare ores and gems, then craft jewelry to sell in your shop by night. Rebuild your uncle’s business solo or in co-op and uncover the mystery behind the nightly earthquakes.

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.

Kebab Chefs! is a Co-Op, cooking and restaurant management game that can be played up to 4 players. Design your own restaurant. Cook delicious foods, fill your menu with various recipes, feed customers and become the biggest kebab restaurant in town!

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.

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

Save Bunnyville from a doomed fate: a top-down action/RPG roguelite from the makers of Dungreed. Explore the depths of the tower, collect and upgrade artifacts, and defeat hordes of demons to keep your village safe.

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.

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.

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.

Fly bush planes on the moon of a gas giant. Do deliveries, challenges and explore an open world.

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!

An asteroid is hurtling toward the planet! Sneak, scavenge and blast your way through an immersive prehistoric world filled with Humans, Dinosaurs, Droids and Mother Nature’s fury!

From a small village of a dozen people to a small kingdom of thousands of people. Arrange for residents to work, gathering, fishing and hunting, farming and mining, processing and manufacturing. Trade, accumulate supplies, increase your strength, and fight evil forces and monsters.

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.

Fly the Lander, collect the fuel, avoid obstacles and perfect your skills to attempt a soft landing in this difficult precision platformer.

Become a crew member of an Interdimensional Express Train! Discover a new world full of mysterious creatures, enemies and places. Upgrade and customize your train, gather new materials and build better weapons. Play solo or online сo-op with up to 4 people.

Hyperspace Deck Command is a complex deck building roguelite. Command a massive space fleet that operates on individual turn timers, combine a wide variety of cards into powerful decks and master the dual-use status effects to defeat the hegemonising swarm.

Enter the creative paradise of Scrap Mechanic! Build fantastic machines, go on adventures with your friends and defend against waves of evil Farmbots in this imaginative multiplayer survival sandbox. With Scrap Mechanic’s powerful creation tools you can engineer your own adventures!

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.

Rubinite is an extremely challenging boss rush action game. in a dark fairy tale world, use Ruby's crimson eyes to expose the weak points of the Bloodstained monsters, then strike and shatter them. Carve a road home through the ruined Scarlet Kingdom and face the Witch who took it all.

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!

Defend humanity's first Mars colony in this fast-paced modern arcade space shooter. Battle asteroid storms, hostile UFOs, complete challenging missions, and master skill-based gameplay inspired by the golden age of arcade classics.

An action roguelite with no attack button. You are a dying star: ramming other stars is how you attack, heal, move, and grow. Steal their heat, gain mass, and outrun the heat death of the universe — across an infinite, procedurally generated galaxy.

Fly, dodge, and score points — this is a real test of reaction and concentration, where every new record feels like a big victory over the ruthless cosmos.

Program and optimize a drone to automate a farm and watch it do the work for you. Collect resources to unlock better technology and become the most efficient farmer in the world. Improve your problem solving and coding skills.

DAICE is a unique merge of turn-based dice-powered combat with inventory management, a roguelite where you control an evergrowing AI Core. Purchase and pilot unique spaceships, load your dice into weapons and systems, and unleash devastating combos and shape your own strategy-driven story.

Sol Cesto is a tactical and frantic roguelite where mastering your luck is key. Choose a hero, upgrade them using cursed teeth and magical items, and descend to the bottom of an ever-changing dungeon. In this dark world, every action has consequences…

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.

STRATA is an arcade descent through rock that is destroyed cell by cell. You pilot a drilling capsule from a dome on the surface, and everything below the first metre is procedurally generated geology: dirt, clay, stone, shale, granite, basalt, obsidian, ironstone.

Incremental Endless Miner . Delve into the depths of Mount Olympus. You are Constantine , a miner set to discover the mountains secrets .

You click - You dash - You slash. Bot slash Bot is a fast-paced, top-down Hack n‘ Slash in which you control a rogue robot slashing & dashing through your former co-machines holding you captive! It's all about speed. Time is running out.

Desynced is a sci-fi strategy game with fully customizable units and behaviors. Gather, build, research, and explore the unknown. Alone or with friends, unveil the mystery of an AI on the edge of self-awareness and uncover the hidden truth in this blend of strategy, automation, and exploration.

Dungeon Clawler is a Roguelike Claw Machine Deckbuilder. Build your deck, grab weapons and items from the claw machine to battle enemies, discover powerful perks that create game-changing synergies and unleash crazy combos as you fight your way through the dungeon!

The Horde is coming, but you're ready to fight it! Assemble your squad, choose their upgrades, and build powerful synergies against thousands of undead. Survive. Then evolve. Then break every limit in this deceptively simple but addictive bullet heaven game.

Unleash mayhem in this bloody, hand-drawn roguelike where Christmas meets metal and Santa fights for survival!

Climb a tower that never lets you leave. Move — your spells fire themselves. Combine 8 elements into automatic synergies, awaken them twice, and gamble on relics that break the rules. Die, bank your gold, climb again. 100 floors, 35 relics, 14 artifacts, and a leaderboard that remembers.

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