Top similar games like Cosmic Gunslinger: Alien Outlaws:
Cosmic Gunslinger: Alien Outlaws $2.99
Cosmic Gunslinger: Alien Outlaws is a pulse-pounding single-player video game where you, as the gunslinger cowboy Cosmo, and your trusty canine companion, must survive relentless waves of Aliens. Upgrade your weapons, collect crucial items. Can you outdraw and outlast the alien threat?
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Deep Nest$4.99
Deep Nest is a fast-paced single player action shooter roguelite where you play a space marine fighting off an endless horde of alien monsters in an infested facility.

Dwarf Star$4.99
Dwarf Star: 16 bit inspired game where mercenary go shoot shoot on evil alien guys who were accidentally fabricated by the government. Top down space shooter with a mission based structure. However, you can do these missions in plenty of different orders with different amounts of upgrades.

Merge Hero$3.99
An idle RPG game with infinite possibilities. Merge items, upgrade stats and fight deadly monsters and bosses

Outlaws of the Old West$19.99
Outlaws of the Old West is a massively multiplayer survival MMO with a huge world, thousands of items and a modular building system. Survive the wild, build your own homestead, defeat villainous bandits and work with others to tame the Wild West.

Tribute$9.99
In "Tribute," a fast-paced roguelike, escape prison and save your son by harvesting souls for power, unlocking abilities, and facing numerous foes. Discover 15 endings shaped by your choices, with extensive upgrades and classes enhancing your journey.

NARGUL - Humans are among us$11.99
Play in VR as a jovial but amnesiac alien. Explore the environment and interact freely with the people. Solve objectives, fight and cross the courses to find the ultimate truth.

Alien Weapon Test Grounds$1.99
Alien weapons with unique physics await in this fast-paced FPS. Battle waves of enemies across diverse landscapes, lighting, and weather. Beware the unstable space-time continuum.

Defend Earth: Xenos Survivors$4.99
You are Earth's last line of defense in a relentless alien invasion. Experience intense top-down roguelite action across diverse landscapes, fighting invaders with a versatile arsenal. Outsmart, outgun, and survive your foes. Every run increases the challenge - so adapt, evolve, dominate!

BlazeSky$14.99
BlazeSky is a space opera action RPG that tells the story of one person changing the fate of an entire galaxy. Explore stunning hand-crafted star systems, fight against strange alien races, and negotiate with key allies in this fully voice acted epic adventure.

Start an egg$15.99
The player plays as a strange animal, the opening of an egg, can hatch different strange animals, devour other strange animals continue to evolve. Fight off the friars who come to capture the alien, find and destroy the portal guarded by the friars to achieve the final victory of the game.

Eden Survivors$4.99
Welcome, hackers, you're being transferred to Eden City to defend its citizens against the alien threat! Eden Survivors is a single-player survivor-like auto-shooter where players must defeat hordes of alien invaders until the extraction time.

Keplerth$14.99
Welcome to Keplerth! Try to survive on a hostile alien planet in this 2D sandbox RPG, where you can choose to live alone or fight side by side with your friends in the online multiplayer mode. Survive, build, farm, fight, and explore your way to victory in this open-world adventure!

PsychFREE
Play as Psych, while he escapes from a research facility run by evil slugs as they attempt to harvest him for his psychic powers. Face the evil slugs and survive the lab! Watch_out_for_Failed_Experiment

Stellar Space$3.99
Stellar Space is a new take on a classic arcade game with a modern, rogue-like, form for new players to enjoy!

JET SET CORPS$6.99
JET SET CORPS is a retro-inspired shoot 'em up action platformer. Fight aliens, rescue colonists, and explore planets in this pixel art adventure. Features co-op multiplayer, endless runner mode, weapon customization, and more! Add to your wishlist now!

THE LAST HUMAN IS A BIKER$1.99
THE LAST HUMAN IS A BIKER (TLH) is a few hours of pure entertainment. In this 2D shooter you play as John, the last human, and unleash his fury in his quest of vengeance! With unlimited item synergies, make the choices that will allow you to survive against countless swarms of aliens!

Sheriff Rage$4.99
Sheriff on guard for the defense of Oldstone city against extraterrestrial forces

Star Command Galaxies$14.99
Take command in the ultimate starship simulator: Star Command Galaxies. Become a Captain, recruit your crew, customize and upgrade your starship, battle alien vessels, teleport to away missions and repel boarding invaders in this real-time strategy simulation adventure from indie studio Warballoon.

Last Space Guardian$1.99
Survive 10 enemy stages! Shoot 'Em Up style, spaceship game, in pixel art and 8-bit retro music! Evolve your shot to the maximum level, use the energy bar for upgrades, and special abilities! Advance each stage by defeating Bosses and enemies to collect new skills, transformations and extra lives!

Space Hero: Intergalactic Titan$2.99
A top-down "bullet-heaven" roguelite where you play as a futuristic space marine. Use a variety of damage and utility abilities in your attempt to survive. Earn tokens to spend on permanent character upgrades, ability upgrades, and ability mods that allow you to customize your playstyle.

Alien Ship Console$3.99
Alien Ship Console is an atmospheric puzzle game with arcade elements, where you must figure out the mysterious interfaces on an alien spaceship. Explore buttons and levers, solve unique challenges for an unknown alien civilization.

Spaceship Survivors$0.99
Spaceship Survivors is an anime-style arena survivor roguelike where you play in space to fight against loads of alien spaceships. Create unique builds to survive and kill the final boss, or go for an endless run. You can unlock 33 playable spaceships.

Out of Orbit$11.99
Design, build, or pirate spaceships. Build bases on planets. Explore endless randomly generated universes, travel through black holes, complete missions, survive cosmic events, collect and trade materials, battle epic bosses, and much more. The sky is the limit, literally!

Star Merc$1.99
Star Merc is an open world rpg where player choices heavily affect outcomes and drastically change the storyline. The game is about exploring different planets, learning about the inhabitants and dealing with the different factions that like to think they control the universe.

Astro Traveler$4.99
A retro style space sim where you mine, trade, bounty hunt, pillage, and explore. In this game you choose you own path as you navigate the galaxy while balancing faction alligence and legality of your actions.

Rabbitra 2$1.99
Combined horizontal shooting and endless runner, "Clean" the enemies with "traditional" gameplay style. Try to buy items to help you "clean" more enemies and challenge for higher scores.

Super Sanctum TD$4.99
Super Sanctum TD is a retro-styled Tower Defense game that focuses on strategy, customization and replayability. Build advanced mazes and construct powerful towers to prevent alien hordes from reaching the Core!

Crystal Valley$4.99
In Crystal Valley they explore alien landscapes mine raw materials and build new tools and fight against a large number of enemies.

Traxion$2.99
TRAXION is a space-themed cave flyer featuring beautiful pixel art, great music, and tons of meticulously crafted physics puzzles.

Gunlocked$4.99
A twin stick shooter without the twin stick, Gunlocked is a sci-fi action roguelike about careful positioning and upgrade selection. Manage unique targeting systems across multiple weapons and upgrades, as you battle legions of alien ships, and then do it all over again!

Alien Planet Explorer$0.99
Alien Planet Explorer is a 2D side-scrolling platformer in which you have to find your way to the ancient sanctuary of an extinct civilization.

ALIEN XENOBLASTER$4.99
Planet GOOBTOPIA's series of irresponsible decisions has led to a filthy wasteland polluting other planets in the solar system. Angry alien BLUNT has had enough in this arcade platformer-shooter.

Chenso Club$9.99
Aliens are attacking! Who will save us? Chenso Club will! Using chainsaws, hammers, and the aliens’ own life force against them - these fearless warriors will pulverise enemies on their way to victory. Go solo! Go co-op! Go hack those aliens in this action-packed, side-scrolling platform brawler!

Lazy Galaxy 2$7.99
Lazy Galaxy 2 is an idle/clicker game with base-building and RTS elements. Lead an evil (albeit lazy) alien race to conquer the universe! Expand your base, fight vicious foes, and conquer the galaxies. Acquire combat experience and convert into candy, the most precious alien resource!

Spaceborne Survivors$2.99
Slice, dice and blow up thousands of enemy ships! Spaceborne Survivors is a sci-fi casual game with rogue-lite elements, where your choices can allow you to become a mecha menace against huge enemy fleets invading your space system.

RRRR3$0.99
An action adventure in the roguelike style with a few puzzles.

Snake Core$4.99
Are you ready to command a range of different units as they battle aliens in a mission-based take on the classic Snake? Select your path to victory!

Chaos Brigade$0.99
Chaos Brigade is a 2D arcade shooter where you control a team of six space exterminators and lead them in the ultimate space cleanse. Wipe out the enemies with your arsenal, but don't overdo or you'll risk destroying the spaceships you are meant to save!

Starcom: Unknown Space$24.99
Starcom: Unknown Space is an action RPG of space exploration and adventure. Build your own starship while discovering an epic story in a universe of strange mysteries, alien factions and uncharted worlds.

Battle Survival in Space$1.99
Crowds of aliens attack from all sides, collect the necessary skills and survive.

Star Devil$2.99
Star Devil is a Sci-fi Station Survival Roguelike Game with dynamic alien infection. Playable in both single player and split-screen co-op.

Magic and Legend - Time Knights$2.99
In Magic & Legend: Time Knights, players will follow the tale of the titular heroes as they travel through time to fight off alien invaders. Use Magic & Legends unique abilities to fend off the horde in this 8-bit style, action-adventure platform game.

Laser Tanks$5.99
Laser Tanks is a fast-paced top down shooter game where you battle against alien monsters across diverse environments using weapons and laser tanks. The game features wild monsters, numerous weapons, laser tanks to operate, and a never-ending Dungeon Survivor Mode for endless adventures.

SurvivorsFREE
Travel through an unknown alien world, collecting new weapons to fight alien monsters and upgrading the Time Tank to withstand hordes of unknown monsters.

BoboInvasionFREE
BoboInvasion is a classic spaceshooter game. Face waves of aliens with increasing difficulty, dodge their attacks, and choose a ship upgrade that suits your style to win

SolitariusFREE
Solitarius is a 2D top-down wave shooter set in a sci-fi space environment. It is a free minigame that contains six different levels, eight different enemies and nine different weapons. Instead of surviving as long as possible you have to make it through each level.

Knock Harder$9.99
The only way to wake up is to die. The player must decide for himself whether he is inside a dream or is in reality.

Infested: Space Colony$4.99
Infested: Space Colony is an intense action top-down shooter in a dimly-lit environment where aliens roam in shadowy darkness. Explore various sections of the colony ship. Hunt down aliens before they hunt you down.

Survive Planet YubglubFREE
Survive Planet Yubglub is a survival rouge-lite, where Earth Representatives must hurl dodgeballs while evading toxic slime aliens and their lethal projectiles. The Earth Reps. must carefully navigate through the harsh environment of planet Yubglub. Choose your character, and Survive Planet Yubglub!

Signs of Life$9.99
Signs of Life is a sci-fi survival sandbox platformer with a combination of procedurally generated and hand-crafted content. You'll explore mysterious locations, Mine blocks for resources, and meet strange (and some familiar) creatures, some of which don't even want to kill you and eat your corpse.

Knock Harder: UselessFREE
The only way to wake up is to die. The player must decide for himself whether he is inside a dream or is in reality.