Games like Ascent - The Space Game on Steam
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Techwars: Global Conflict
TechWars: Global Conflict is the world’s first isometric PVP mecha-action with direct control. Only the strongest player will be able to win in this war of titanic mechs. Use all the features of world’s realistic technology Techwars. Victory in every battle will bring you closer to creating your own death machine.
VoidExpanse
Explore the vast reaches of VoidExpanse -- mine asteroids, upgrade your ship, trade, complete missions, advance your character and survive fast-paced combat with hostile aliens and mercenaries in the rich and exciting Sci-Fi universe of VoidExpanse!
Starship EVO
Create the Starship of your dreams, explore the vast expanse of the galaxy, land on planets and jump into epic space battles. Experience a truly unique and powerful building engine where your imagination is the limit. Welcome to the next evolution in Space Sandbox gaming!
EVE Online
EVE Online is a free-to-play community driven space MMO where players can choose their own path from countless different options. Experience space exploration, immense PvP and PvE battles, mining, industry and a thriving player economy in an ever-expanding sandbox.
SPACERIFT: Arcanum System
At the sunset of human life on planet Earth, you are a military pilot controlling a space ship, and you find yourself at the very epicenter of the battle in the solar system. You are forced to retreat into the unknown, distant Arcanum system through hyper-jumping.
FTL: Faster Than Light
This "spaceship simulation roguelike-like" allows you to take your ship and crew on an adventure through a randomly generated galaxy filled with glory and bitter defeat.
The Last Starship
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!
DG2: Defense Grid 2
Setting the bar as the definitive tower defense game, Defense Grid 2 introduces new worlds and threats to test your tower placement strategies. With a bold new look and the addition of new game modes, player-versus-player and multiplayer co-op, every play brings fun new opportunities and challenges.
Democracy 3 Africa
Democracy 3: Africa is the new standalone 're-imagining' of the hit political strategy game 'Democracy 3'. Set entirely in countries on the continent of Africa, D3:A puts you in charge of these countries and challenges you to stay in power whilst fixing each country's problems, improving the quality of life for your electorate, and...
Galaxy Squad
Galaxy squad is a hardcore turn-based tactical roguelike, inspired by FTL and XCOM.
Stellaris
Explore a galaxy full of wonders in this sci-fi grand strategy game from Paradox Development Studios. Interact with diverse alien races, discover strange new worlds with unexpected events and expand the reach of your empire. Each new adventure holds almost limitless possibilities.
Project AURA
Project Aura is a micro management game where you lead a Colony of Climate Disaster Survivors. You have been assigned the mission to build an habitat capable of survival in this new unknown world.
Space industrial empire
This is a idle game modeled on industrial building gameplay. It will be three-dimensional, complex industrial assembly line, easy, simple plane conveyor belt. At the same time to join the battleship assembly, space campaign, character development, giant construction, trade orders and other gameplay!
Out There: Ω Edition
Out There is an award-winning space exploration game blending roguelike, resource management and interactive fiction.
Hearthlands
Hearthlands is a medieval/fantasy city-building real time strategy game in which you take a role of a king in a procedurally generated world. You can not control your subjects directly; instead you focus on city-building, resource management, diplomacy, heroes, magic and other things a typical king deals with on a daily basis.
3030 Deathwar Redux - A Space Odyssey
3030 Deathwar is a unique mix of Adventure and Space Sim. Explore star systems, mine and hunt pirates in top-down mode. Leave your ship and switch into classic Adventuring mode, where you explore derelicts, talk to shady characters or head over to the space bar for a drink.
NITE Team 4 - Military Hacking Division
NITE Team 4 is a military hacking simulation game that explores the world of cyberwarfare and features realistic mission scenarios.
Battlestar Galactica Deadlock
In Battlestar Galactica Deadlock™ you’ll take command of the Colonial Fleet in defense of the Twelve Colonies during the First Cylon War. Lead many different types of ships in this 3D tactical game. Every decision counts, your strategy will be vital – can you ensure mankind’s survival?
Space Pirates and Zombies
Explore a randomly generated Galaxy populated with factions, enemies, missions, and items providing you with a unique experience each time you play.
Kingdom Wars
Kingdom Wars is a free to play 3D MMORTS with real-time siege combat, without the pay to win element so common in the genre. Kingdom Wars offers beautiful 3D online world, where players construct strongholds, direct citizens, complete quests and eventually manage a global empire.
Murderous Pursuits
Murderous Pursuits is a kill-or-be-killed Victorian stealth-em-up for 1-8 players in which you must hunt and kill your quarry before your hunters do the same to you, all while avoiding witnesses.
Touhou Ibunseki - Ayaria Dawn: ReCreation
(English Version Available) A classical Monopoly-like game with 20+ Touhou characters and 10+ official maps. Custom level editor, double resource system (money & crystal), electric dispatching, SP required dice throwing and weather system bring you a whole different game experience. Original characters are waiting for your challenge!
Star Wolves 3: Civil War
Large-scale battles have become a vestige of the past, depleting resources of conflicting parties. Settled space, where welfare and order had reigned, has become a cemetery for dead ships which is flooded with pirates and adventurists.
Farm Frenzy Collection
Enjoy the farmhouse gems with this solid set of 12 Farm Frenzy titles! Join Scarlett throughout all of her adventures in hundreds of farming challenges. Raise chickens, ostriches, and dolphins. Bake cakes, grow crops, and sell items at markets. It's an all-out farming assault with one of the most enjoyed series ever!