Top similar games like Underspace:

Become the Captain of an interstellar cruiser and journey across the galaxy to save the Republic. During your journey you will have to make important decisions, improve the weaponry of your ship and fight against numerous enemies.

A sci-fi space flight, exploration, and survival game in third person. Survival is important in this universe, both physically and economically. Exploring different planets, spacestations, and debris areas, and surface facilities is the key part for scavenging and collecting materials and tools.

Landinar: Into the Void is a top-down space-adventure-RPG. You are recruited as a rookie bounty hunter in the oppressive Landinar Empire. On your journey through the quadrant you will meet diverse characters, build your own spaceship and choose your battles.

Take control of Nara on a quest to destroy the dark cult that created her. Unlock devastating weapons & mind-bending abilities in an evolution of the space-combat shooter. Along with Forsaken, her sentient starfighter, explore ancient temples, engage in zero-g combat & venture beyond waking reality.

Advanced Space Flight, Combat, Trading, and Exploration Simulation. Set in a vast explorable universe, Evochron Legacy offers freeform gameplay with many diverse objectives and paths to choose from.

Subdivision Infinity is an immersive and pulse pounding sci-fi space shooter featuring stunning graphics and tight spaceship game play. Hunt down and destroy enemy spacecraft, crush capital ships, mine asteroids for rare minerals, and find blueprints to craft amazing new vessels!

Experience a 1:1 scale, procedurally generated universe with seamless exploration from planets to stars. Journey across the cosmos with zero loading screens and realistic Newtonian physics. Trade, fight, and survive in a post-apocalyptic galaxy where gravity is your only boundary.

Rebel Galaxy is a swashbuckling space adventure, with action-packed combat, exploration, discovery, trade, and “negotiation” with the outlandish denizens at the edge of the known universe.

Prove you're the most feared pilot in the galaxy in this multiplayer arcade space shooter!

Star Spectre is a single player space combat game with tons of exploration and numerous RPG elements. You will be free to explore and trade, as well as fight in a vast galaxy.

The ultimate space capital ship combat compendium is the evolution of hard core space combat sims. The only game of its kind currently in existence.

This is an unusual adventure future simulation space game, in different gravity under your operation will also change. Players can feel the vastness of different planets in the game, feel different gravity, feel their own different operations. Conquer the universe!

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.

Space Travellers is a unique open-world sandbox space simulator set in the year 2343. Travel the galaxy, trade, explore unexplored worlds, fight, build bases and factories, forge alliances and experience new adventures!

Worlds Of The Future is a sci-fi open world, action/adventure game. Explore a fully seamless solar system full of adventures, mysteries and colorful characters. Build your space delivery company, climb the company rankings and become a legend among the worlds!

Voidless is a sci-fi space survival sandbox set in the near future within a realistic scale solar system. In first or third person, players can explore planets and asteroids, collect resources, and craft items. As well as building bases and ships, all with physics based flight and combat.

Flight of Nova is a simulator based on newtonian mechanics in which you control spacecraft in the Noren star system. You fly multiple types of spacecraft doing transport and search missions in an environment with realistic aerodynamics and orbital physics.

Out of cash, out of luck, out on the fringe. Juno Markev has a killer to tail, a debt to pay, and more trouble headed her way. Rebel Galaxy Outlaw takes place in a greasy, blue-collar world of outlaws, truckers, cops and thieves.

Elusive Verge is a third-person space exploration game with dash of base-building, combat and survival.

The game of survival and construction on the surface of the moon. Learn to build a base on the surface of the moon, maintain survival, explore and discover the secrets inside the moon, and solve abnormal problems.

Survival game in a space setting with resource manager elements and puzzles

A single-developer passion project. A seamless full scale solar system. Thrilling action. Be part of an incredible journey as a Universe is built from the ground up!

Galaga meets Tie Fighter meets Elite Dangerous. A sci-fi starfighter combat sim with NASA-accurate Keplerian orbits. Voyage across the Solar System with real-time FTL. Engage Dregg swarms in dynamic PvE encounters. Outmaneuver invaders by pushing Newtonian physics to the limit at 150 m/s.

Strap into the cockpit of a retro-futuristic starfighter as you fight through the ravages of an interstellar war across more than 35 story missions, 15 side missions, and a dynamic warmap with over 2000 possible scenario variations.

Space Mercs is an extreme arcade space combat game where the amount of projectiles and lasers on-screen is only toppled by the amount of stars in the universe! Will you be able to complete all the mercenary missions and become the best pilot in the Galaxy?

Lead the legendary Owl Force and your wingmates on an epic journey defending the galaxy against the nefarious Darktail Order. Take on missions, upgrade your ship, and engage in heart-pounding battles to uncover the hidden secrets of the universe.

"Just a Game" is a sci-fi flying shooting game, you will control the robot protagonist zero and lead the partners in this exclusion of artificial intelligence in the world to survive, there are many camps in the game, you can choose to join them or one side.Build your fleet and fight the world.

Starlight Brigade is a realistic space action-adventure game with a precise combat system and full 6DOF controls. You command the Wayfarer, an aging light cruiser centuries past her time. Plot missile salvos, hunt down your enemy, design munitions, manage your crew, and send engineers to fix damage.

The ultimate space sandbox. Participate in epic fleet battles, form alliances, strive to dominate entire galaxies and harness the universe’s resources for your industrious empire or the destruction of others. Customise your experience, the universe is yours!

Explore asteroid fields, trade rare resources, and upgrade your ship in Cosmic Miners. Navigate faction alliances, complete missions, and rise through the ranks in a dynamic space adventure where your choices shape your path to cosmic power.

A Hybrid-MMO made in a futuristic setting, where you can race or catch big air with your customized gear, and with your friends!

Space Defender is a top-down 2D arcade space shooter with some RPG elements.

Fight other players for control of wizard towers. A multiplayer action RPG with permadeath. Going for that sweet, sweet classic MMO feel.

Polynomial 2 is an amazing visual candy which tends to be a space shooter and a music visualizer. Immersive on screen, mind-blowing in VR.

WarpedSpace is a sci-fi survival adventure game set in deep space. A massive, open environment full of wonder and peril awaits you!

Classical 3D space combat simulation with unique 100% dynamic destruction engine, allows you to realistically damage and burn through your enemies exactly where you hit them with blasters, causing their onboard systems and armor to melt away and fall apart. Made by solo developer.