Games like Underspace on Steam
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STAR WARS™ - X-Wing Alliance™
A neutral family fights for its business - and its survival - and is swept up in the struggle against the encroaching Empire. You must defy the strong-arm tactics of a rival family who will stop at nothing to destroy your trading company.
Starcom: Nexus
Suddenly thrown into an unknown galaxy, you must explore, fight or befriend aliens and transform your ship from a small survey vessel into a powerful battlecruiser to unravel the mystery of the forces that brought you here and find your way home.
Stickman Strikes: Conquer Fantasy World
A dragon's breath turns you into a stickman! Conquer castles, plunder territories, or lead your squad in this fantasy world! During your journey, you can explore various dungeons, discover hidden treasures, engage in trading, farming, craftmaking and more. Will you survive and regain your true self?
Survive in Space
The game is spread over 50 different levels, and Sasaki must fight through them all to redeem his people. The game features five powerful bosses that you will encounter at the end of each sector – every nine levels. Each boss is a skill puzzle of his own, with shifting mechanics and environments that will keep you on your toes.
Erenshor
Erenshor is a single player RPG with the soul of a classic MMO - built for players who miss the journey. Partner up with Erenshor's signature SimPlayers and explore an open world where every reward comes with a story. Discover thousands of items, quests, raids, and secrets - all at your own pace.
Fantasy Versus
Fantasy Versus focuses on quick paced 4 vs.4 multiplayer battles. Find your own play style, team up and fight towards victory in Fantasy Versus!
House of the Dying Sun
House of the Dying Sun is a tactical space shooter that puts you in the cockpit of the universe's most terrifying starfighter. Hunt the enemies of the Empire and bring ruin to their people.
Netherworld Covenant
In the abyss where the mortal realm and netherworld intertwine, become a warrior wielding the power of the Nether Lantern to fight along with the fallen souls. With hardcore, soulslike action and intriguing roguelike builds, shatter the cursed barriers and unveil the truth woven from blood and soul.
Flesh Eaters
Flesh Eaters is retro style single player RTS zombie survival game with resource gathering and crafting. Zombies are everywhere! You must gather resources to build barricades, upgrade weapons and armour and explore the city under the siege of the dead
AX:EL - Air XenoDawn
Combining the very best of sci-fi and aerial dogfighting gameplay, AX:EL delivers a totally new gaming experience. Create your very own shape-shifting vehicle and dominate both the sky and the ocean.
Blast-off
Blast-off is a hardcore jumper/runner/shmup, where your alter ego will be a ball of anti-matter seeking to leave our Universe. Anti-matter is extremely difficult to exist in our universe, because when it contact with matter it annihilates.
Hold Your Own
A single player open world sandbox, crafting and survival FPS game set in a multi-island land where you'll fight to survive. Build your base, hunt and craft to defend yourself from aggressive wildlife, enemies or friends. Do you have what it takes to Hold Your Own?
Blightbound
Blightbound is a multiplayer dungeon crawler that tasks three heroes to venture down from their mountain refuge to face the abominations of the Blight - a mysterious and corrupting fog that enshrouds the land.
Interkosmos
Interkosmos is an arcady astronaut adventure in VR. Brace yourself for a rush of hectic gameplay to challenge your inner cosmonaut, and a fun story full of twists and Cold War absurdities.
3089 -- Futuristic Action RPG
3089 is a futuristic, procedurally generated, open-world action role-playing game. All terrain, enemies, weapons, items, quests & more are uniquely generated. Will you obey your creator, the Overlord, or find your own path?
Cave Crawlers
Cave Crawlers is a 1-10 player rogue lite set deep underground in a system of randomly generated caves. Players use weapons, spells, and talents to defeat the unique bosses and enemies found in each biome.
Titan Quest II
Nemesis, Goddess of Retribution, is out of control. She is corrupting the Threads of Fate and punishing all those who oppose her. Take up your weapon, fight alongside gods, and change fate itself in Titan Quest II, an action RPG inspired by Greek mythology.
Spell Fighter VR
[Old archival game] An FPP fantasy VR demo made in 2016 to test Vive's motion controllers. Works only with HTC Vive and was never upgraded to work with other VR controllers after they eventually released. It was always a free, hobby project.
Wayward Terran Frontier: Zero Falls
2d space combat like no other. From the perspective of a single crew member, explore the fully destructible interior of any ship in a massive living world. Engage in space combat with no hitpoints where you know your enemy is dead when you see them fall out of their ship into the cold dark of space.
STAR WARS™ - X-Wing Special Edition
Against the overwhelming might of the Empire stands a small but growing Rebel Alliance. Scattered resistance groups are uniting and what is needed most now are Starfighter pilots. Will you join their struggle to end this tyranny and become a hero of the Rebellion?
Space Pirates And Zombies 2
Design and then improve the ultimate mothership. Explore a persistent living galaxy populated by 200 unique captains that can do everything you can do. Survive the zombie infection and then fight them back. Make allies and start your own faction. Build your empire. Also includes Sandbox Mode.
Cosmochoria
A tiny, naked cosmonaut with a jetpack & laser blaster must revive a dying galaxy by planting one seed at a time. An innovative and addictive arcade adventure experience with mystery and intrigue in all the right places.
Deliver Us The Moon
The Moon has gone dark, cutting off Earth’s last source of energy. As a lone astronaut, you’ll explore abandoned lunar bases, solve intricate puzzles, and navigate stunning zero-gravity environments. Operate advanced vehicles, uncover hidden truths, and survive in this gripping sci-fi thriller.