Top similar games like Holostar Command - Quantum Alliance:

Join the war in the depths of space with Space Shooter 24! Customizable ships, realistic graphics, and breathtaking action await you. Take action now to save the galaxy.

Don your space helmet and fire up your star drive as you blaze a trail across the stars in this 1980s inspired space exploration game.

ThrustWorks is jetpack flying combat game with familiar flying gameplay. Soar through the sky, fight enemy turrets, collect coins, and experience vivid views in 4 unique levels. PC and VR support both included.

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.

Welcome to a VR game where you rule the universe! Break stuff, enjoy gravity physics, and survive natural disasters. And the best part? Fight off aliens using several guns or even asteroids. Try everything you can to keep your home solar system safe from the dangers out there!

Maze Shooter is a smart challenge, a maze adventure VR game that can be freely combined through maze gameplay. Before playing, SteamVR needs to be set to OpenXR.

Become an Evil Superhero in VR. Customize your laser colors, Kill almost any NPC, Laser enemies to bits, laser down airplanes...all in VR! You can do whatever you like. No one can stop you. Save civiliians... kill them... it's your choice!

Terrain Explorer is a terrain adventure and shooting battle game featuring spaceships and a target planet training ground. SteamVR needs to be set up to run with OpenXR.

The galaxy’s deadliest villains have escaped. Track them, fight them, and lock them back up.

Android Simulator: Prologue is just part of the amazing adventure that awaits you in the full version of the game. Take charge of a spaceship colony, flight route and manage the right water balance for plants, oxygen level, and spacecraft parameters to securely deliver the colonizers.

Mecha enthusiasts, strap on your VR headsets and pilot a variety of mechas in this first-person VR experience. Whether as a solo fighter or in a team (up to 3V3), achieve mecha fighting glory in this exciting MOBA.

Sci-fi builder - a simulation game that allows you to create your own, perfect sci-fi rooms and station. A huge selection of furniture, construction elements, computers, accessories, lights and other interior details await you.

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.

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.

Build a convenience store on an asteroid - Full immersive VR. Gather ingredients, put them into machines and craft items your customer will love.

Welcome to your favorite TV show “Goodies Everyday”. "BD Plus" that lets you live different lives in others’ brains. Be a gangster, a pineapple dragon boss, or a snack stall master. Come and watch the first part of BD Plus: Cyber Puncake, where you control the stall master to cook pancakes.

UNSTABLE is a 3D action runner with spaceship flight simulation. Handle unique keyboard controls to avoid asteroids! Disintegrate obstacles with a plasma laser weapon! Beat Leaderboard! And get to the mysterious unknown! Will you master the chaos of an unstable spaceship?

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.

Envision the real world in VR

You alone are responsible for the maintenance of a space station. If you were looking for a non platform defense game in VR, you found it in this fast paced “space station explosion simulator”. How hard can it be to push some buttons, eh? (The Loma sector has Tribbles)

In the distant future, the X universe faces a period of profound and irrevocable change. While the universe stumbles towards an uncertain future, countless adventures await as new enemies rise in search of power.

Star Squadron is a narrative-driven space combat simulator built for maximum immersion. Command your wing with freeform voice recognition and experience a dynamic campaign that calls you by name using our proprietary Voice Mimic System. Don't just play the game—live it.

First Impact: Rise of a Hero immerses you in a beautiful comic book world where you can run, jump, fly, and summon elemental powers to protect citizens. Experience a lush array of islands and cityscapes and uncover the truth about a mysterious force sending meteors to Earth. For PC & VR!

Smash, slap, and whack squishy clay heads in VR! Choose wild weapons like crowbars and guns, watch heads deform with soft body physics and hear the heads react to each blow. Play HIT, the ultimate stress relief tool!

Space Battle VR is an action shooter set in space. It supports VR controllers to give you a real feel how it is to be a spaceship pilot. You can truly feel the cosmos with this game. Jump into an awesome adventure, help mankind, win a war, bring freedom and happiness to the universe. People need you!

OnSlaught is a combat driven space game, but plays like a classic boomer shooter! Rip through fleets of horrifying alien ships and obliterate destructible environments as you shoot, grapple, and bring carnage to your creators.

War In Other Space, Role-playing game, first-person shooter, there are 15 maps in the game, smart enemies with artificial intelligence, cool Science Fiction Weapons and all this in other Space

Welcome to The Lab, a compilation of Valve’s room-scale VR experiments set in a pocket universe within Aperture Science. Fix a robot, defend a castle, adopt a mechanical dog, and more. Still not sold? It’s free!

An exploration game with jetpacks and a variety of guns, all in the stunning immersive world of VR! Chill, low stakes, and semi-destructive, it's the perfect game for stress relief and satisfying your inner child.

Explore and unravel the mysteries of Rheksetor!

A sci-fi rpg where you are a robot that flies a ship and fights on foot to save the solar system and humanity from an artificial intelligence known as I.I.I. Has a story where you try to save the solar system or you can play waves mode where you fight waves of enemy ships.