Top similar games like Interstellar Survivor:

Invasion: Phoenix is a passion project by a solo developer and lifelong gamer. An alien empire hellbent on conquering Earth has arrived at our doorstep, and humanity is in total anarchy. Delve into this meticulously crafted 2D top-down pixel art RTS and sign up to reclaim Earth!

Top down 2D sci-fi space themed roguelike bullet hell shooter with different player classes and abilities to play with.

In the vast depths of space, lies a man with a dark past. Setting himself apart from that old life, and seeking justice against wrongdoing instead of being the cause of it, Captain Righteous uses the Freedom Fighter, his trusty space fighter to search for and combat the evil Captain Buster!

Collection of a few arcade classics, remade with a fresh and friendly looking art style and a beautiful soundtrack.

This is a retro space shooting game, where you only fight against the strongest enemy. There are 15 unique bosses in the game, and players need to use different weapons and strategies to defeat them. Dedicated to you who are both challengers and retro game lovers.

Fight hordes of Covenant & Flood in this new game mixing Roguelite & Bullet Heaven for hours of mindless fun!

Good old fashioned 2D arcade fun with tons of upgrades and fast paced action where taking risks is rewarded with a higher score. Defend humanity's last source of energy wrench in one hand, laser gun in the other

Movement is your weapon. A sci-fi action roguelike and shmup combined, in Gunlocked 2 you'll pilot and upgrade a state-of-the-art warship against endless waves of deadly aliens. Deep customization, branching paths, and tons of unlockables offer endless replayability!

A retro-inspired 2D space shoot-em-up. Mine asteroids! Shoot alien saucers! Get rich or die flying!

Embark on a thrilling bullet hell/SHMUP journey in Beyond Solar. As "Gravity," a space pilot from the colony ARD, defend humanity's last sanctuary amid Earth's impending doom. Brace yourself for intense pixel art action in a desperate fight for survival.

Protect the base from an alien invasion. Place cannons and destroy the invaders. Upgrade cannons to resist the enemies.

A topdown bullet hell game where you control a spaceship and fight waves of asteroids and enemy spaceships.

Drift Shooter is an arcade game. Players control a graphic with a car control feel and collect multiple types of weapons in the scene. By combining and using such skills, they can attack waves of enemies.

This is a local two-player tank battle game where two players control blue and red tanks; Players will use a limited number of bullets to eject and defeat enemies in the scenario!

A quick and action paced retro styled arcade shooter, or shoot 'em up (shmup) if you like. Perfect to play in short chunks, like when you are waiting for big games to download.

Engage in exciting magical rituals of life and death with Recitallion! Be it alone or as a team, use your spell cards' two effects in combination, manage your small deck, steal resources from your opponent and prevail against them in battles of strategy and reflex!

Protecting Us From Incredibly Worrisome Extremely Hostile Oddities...is what you will be doing with your football! Defend the Earth from the invading disciples of the Deranged Octopus, and learn the ultimate secret of the Universe.

A shoot 'em up that tests your wits and reflexes! Mastering the ability to change color between red, green and blue is the key to beating this game.

A classic old-school shooter with the possibility of upgrading your own spaceship.

Gratuitous Shooty Game is a hobby space shooter made by the developer of Gratuitous Space Battles, reusing the art from that game :D.

Warm up your boomerang throwing skills in the free duel mode of Bämeräng, the fast paced boomerang fighting game. Fight for the favor of the goddess in an outlandish, colorful world in this local multiplayer game.

Defend against the creatures of that night! Protect yourself and your lamp by building and upgrading your base. Equip yourself with the best weapons to deal with the incoming waves.

Cyberscape is a top down round based action game with some rougelike elements. Play as different heroes with unique abilities and fight against the evil robot army. Level up and complete achievements to unlock new items and fight your way through different locations.

Defender's Squad is a sci-fi vertical scrolling shooter 2D that combines 7 different levels. Play Solo and pick one of the 3 ships to kill enemies and save the earth from aliens.

The leaders of the seven nations failed to reach a peace agreement. All kingdoms are now at war.

Dodge, shoot, survive! Polygon pursuit is an arcade-style twin stick shooter where you are pursued by multiple enemies constantly. You play as a lone circle confined in a polygonal world fighting to survive against waves of unique enemies. This is not an easy game.

Lead your nation in Territorial Conquest through the Middle Ages, WWII, and Modern Era. Expand borders, build armies, trade, sabotage enemies, make political decisions, and conquer the world in immersive real-time strategy.

During the game, you play the role of one of the army commanders who faces alien invaders.-Expand your base-Extract raw materials-Create troops-Counteract invaders

Gray goo is a short retro arcade shooter with lots of upgrades. This game is about destroying goo in space and saving the universe.

Survive the waves! Buy weapons and ammo! Unlock new stages! Purchase companions! Solve daily quests and get rewards! Casual Pixel Warrior is a wave shooter where your endurance to last an infinite fight depends on your skill, unlocked weapons and purchased ammo.

Frantic 4-player laser ricocheting top-down shooter. Keep it casual and enjoy the chaos, or master the surprisingly deep mechanics to obliterate your enemies. Duke it out locally in free-for-all or 2v2.

Halo: Spartan Assault brings the excitement of Halo combat to Steam for the very first time. Battle your way through 30 action-packed missions against the Covenant as you explore the origin of the Spartan Ops program featured in Halo 4. *DirectX feature level 10 required. *

Dynamic 2D retro, pixel-art, shooter. Fly fast, shoot accurately. Fight back the Rivanirs invasion. You are the Captain Jackson, you are their Doom.

A fast-paced sci-fi space survival shooter where you blast through relentless enemies, upgrade your ship, and climb the global leader-board.

Join Captain Rijk as he attempts to escape from the clutches of one of the most villainous species in the galaxy. Help to uncover the horrors that are being carried out on the fringes of the civilised galaxy and become the divine being prophesised to inspire an uprising and destroy The Domain.

This fast action shooter lets you witness medieval combat in a new way. In an Adventure and Rogue-Lite mode you will have to fight knights, horse archers and even elephants.