Top similar games like Outlaws vs Aliens:

Asteroids and Aliens, Arcade Shooter pays tribute to the Arcade Classic Asteroids. Destroy the Asteroids, save the humans, kill Aliens with Lasers, Missiles, Smart Bombs, or Nukes. You have unlimited Missiles/Bullets but limited Laser firepower and Shields, they can be recharged collecting powerups.

WE HAVE ALIENS, YOU DON'T—Blast Martian invaders and flying saucers across 30 stages with robotic voice effects. Use your destructible shield, rescue army men for bonus points, and chase the high score.

Hoovernauts is a space-themed, 2D action-platformer that supports local multiplayer of up to 4 players. Using game remotes, players can work together to take down hostile space creatures in the campaign mode or fight against each other in the arena mode.

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.

About：It is an old school game collection with ten different types of mini-games.The story tells of a series of wars that took place on the island

Moonless is a challenging side-scrolling platformer in the style of classic arcade games of the 1980s, where you control a helpless astronaut who has been left stranded on the moon, and now has to face an invading alien force to earn a chance to go home.

Spacejack a UFO and turn alien tech against its owners across 49 action-packed stages. Use black holes, nukes, slow-mo, and more to survive escalating waves and save the planet.

Zagu Espionage is a single player, 2D side-scrolling action-adventure game where the player takes on the role of the main character, Zagu, a spy from the Tracha colony, who is traveling to seven different regions to defeat the Rogan empire.​

You are military volunteer. what? you did not volunteer? It's too late! You are already in the middle of the battlefield. kill the alien for the humanity! Marine Survivors is simple action rogue lite game. kill aliens, earn exp gem, upgrade your weapon. unlock various collection.

2D pixel art platform game in which you are in charge of eliminating alien enemies that try to conquer your planet.

Abduction Bit is a NES-like arcade based on elements of some timeless classics from 80's (Bubble Bobble, Ice Climber, Mario Bros).

Defend the Little Spaceman Dudes from aliens! Blast waves of Alien Abductors and UFOs across 50 challenging levels in this fast-paced ’80s-style arcade space shooter.

Terra Flame is a horizontal shmup inspired by the 90's. The feature is that you can switch between three types of weapons in real time.

Dash Fleet is a simple and fun dashing action game.

Fight back against a chaotic alien invasion in this fast-paced retro shooter! Blast through 54 levels, master wall-jumps and dash moves, and take down the mischievous beboks before they overrun the planet.

You do not know anything, yet you have to move forward. Wander through the corridors of a mysterious factory and recover your abilities. Fight patroling drones and break through to demanding boss battles. Seek a way out and find the meaning of the game's title.

A gang of nine aliens from another galaxy that were put to community service, want to clean the universe from what they think is the worst garbage: humans! Help them in this arcade game!

Experience platforming on a new level! Dive into diverse challenges from puzzles to races, crafted by players globally. Unlock your creativity with a built-in editor, craft your own stages, and share with the world. Get ready for an unforgettable gaming and creation adventure!

Why are alien insectoids invading Earth in 2023? This narrative driven 2D shooter pits you against a seemingly hopeless battle against the invading Insectoids. How will you (and Earth) manage to survive? What hidden technological, historical, and spiritual secrets will you discover as a result?

Grav Blazer is an arcade space shooter with a focus on fast paced action. Skill based firing mechanics, rotational controlled power attacks, increasing level difficulty, and endless procedurally generated levels are some of the features players will experience.

CONTENTS: Action Game full-set (7 Stages) and future updates if available. Elf-Shield is one of the best games if you are fan of late 80s' PC games or are looking for bite-size simple game. This game is a modernized BreakOut like action game with 80s taste Pixel Graphics and Anime Style graphics.

Invaders from the Lost Sectors is classic arcade action. Aliens descend with increasing speed towards your base. Shoot them all before they land. Player controlled settings like guided missiles, rate of fire, enemy speed and more help you customize exactly the game experience that you want.

Shoot to move, move to live, live to shoot! Blast Off Far Away (B.O.F.A.) is a space-themed, top-down arena shooter, with a focus on fast-paced arcade-esque gameplay, with the unique twist where movement is limited through the use of the player's gun.

In Swapshot, you take control of this fearless protagonist, equipped with an incredible teleportation gun. Your mission is to overcome a series of challenges in a world filled with 2D platforms and intriguing puzzles.

Breach In Space is a 2D shooting game with challenging combat and very hard platforming. Find a way back to home galaxy through 4 different planets.

Curious why gamers in the 80s were so addicted to NES games? Star Keeper will take you on a journey to experience the joy of staying up all night to beat this NES game!

Blast your way through oncoming hordes of slimes in this run and gun, slime blasting shoot 'em up! Arm yourself with an arsenal of futuristic weapons and defend your home as its invaded by a disgusting infestation of slime scum. Run, Blast, Survive! and whatever you do...DON'T GET SLIMED

《World of Chaos》 is a 2D cartoon shooting game where you will control a mercenary group to explore the world, engage in trade, and fight battles.

The Jabco World has called Mr Jorries to shoot away all the Boinks invading the world. Jabco the star nation watching the good, hard and the bad. Your objective is to shoot away as much Boinks as you can. Swim, Fly or Swing your way through while testing your platforming skills No Worries Mr Jorries

Classic 80s inspired shooter

Death Road is a solo Top Down Shooter game. Take on the challenge of liberating the earth from a zombies and monsters infestation, using over-the-top weaponry in a world with awesomely stylized graphics. The road journey has never been so much fun!

In this classic retro arcade-style space shooter, you'll embark on a thrilling adventure through the cosmos, battling against an onslaught of alien invaders and formidable bosses. With its pixel graphics and pulse-pounding soundtrack, Xappy Ship is a love letter to the classic space shooters.

Mayday is an atmospheric 2D side-scroller sci-fi with simplistic gameplay.

Brave Soldier: Invasion Of Cyborgs is a pixel art platform game with a lot of action. Help the soldier save the world from the Cyborg Invasion! Good Luck!