Top similar games like Alien Defense Unit:

Fortified is an explosive strategy shooter where players will defend the Earth against a menacing Martian invasion in the 1950s. Play as one-of-four pulp inspired heroes as they fight swarms of terrifying robots with an arsenal of Cold War era weapons and experimental technology.

Tower Expanse is a tower defense PvP strategy game. And it's free! Join the battle arena queue for ranked matches. Craft new heroes, build towers, command minions. Choose your elemental alignment. Start earning XP today!

ZAMB! Endless Extermination is a mash-up of a twin stick shooter and a tower defence game. Play in local co-op or online with a friend, sibling or partner as two space agents, Cye (the brawler) and Chrome (the tactician).

Sanctum 2 is the sequel to the world’s first Tower Defense/FPS hybrid game. Pick from four unique character classes and embark on a mission to protect the oxygen-producing Cores from hordes of deadly aliens who are threatened by their existence.

*** It's a wave shooter with DEPTH ! *** The pre-game is all about building your weapon loadouts. Pay attention to the level bonuses and maximize your synergies.When you are ready, prove your plan in fast paced VR gameplay.

Dark Nebula is a sci-fi VR shooter full of insane encounters and bloody kills.

Set in the near future, Earth is becoming uninhabitable. Human Beings send AI-driven robots to your planet, Impulse, to eliminate your species in preparation for their colonization of your planet. Blast your way through hordes of enemy bots to protect your home and prevent the human invasion!

ROM: Extraction puts you into the role of an Extractor where you must Throw, Slow, & Shoot your way to decimate as many extraterrestrial-bots as possible. ROM: Extraction begins as an homage to the classic arcade shooter with more game modes and maps to come!

Arcsaber VR is a fast-paced, zero-gravity game with unique melee combat. Fly through space "superman-style" and use the Arcsaber to destroy the bombs before they reach Earth!

Sci-FI Virtual Reality action shooter.

Galactic Force is a sci-fi FPS loaded with frantic action and lots of firepower.

Unique fusion of a top-down shooter and tower defense strategy. You are the invader! Use destructive weapons or lead your enemies into a maze of towers. Strategize in the build mode by carefully selecting various types of alien towers or throw yourself right into the heat of the battle.

A fast-paced VR arcade shooter, where you fire guns, shoot energy bows, and toss explosive spears to defend your base from an alien infestation. The bugs shoot back, so don't forget to duck!

The humanity succumbed against the power of a aliens intergalactic empire, but managed to organize and establish a resistance army. Join the rebellious seekers of peace and help them defeat the evil that haunts the Earth.

Hive Slayer blends classic arcade style with the power of VR to make you the galaxy's deadliest defender. Face the alien XenoHorde and halt its invasion of the stars as you Blast All Bugs.

Arcade Mayhem Juanito is a retro experience about arcade-hopping. Teleport into different video games, play with unique mechanics inspired by well-known arcade games, face stunningly animated bosses and join the fight against the clonocell invasion.

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

Aliens are hungry and they would LOVE to have a bite of some tasty Beef. Abduct the Beefs on each planet avoiding ammo, explosions and lasers. Casual indie Virtual Reality game using cool spherical gravity game mechanics.

Every Night, the monsters come and attacking your Obelisks. You need to use your magic guns shooting down the monsters and protect your Obelisks!

Team game for 4-10 people in which there is a killer and crewmate.

In the game you play the Pandean hero, Tin, which has a mission to save his planet from alien threat. You will be facing many obstacles thru different environments, where you will meet angry robots and funny looking animals.

Defend your base on Mars from invaders in Residuum. A thrilling mix of tower defense and shooter gameplay, upgrade weapons and choose your crew for a unique experience each time. Play with a friend for even more excitement!

A solo development and the first game of Processor Game Studios presents "VOLCAN defend the Tower". A third person shooter on an open world sci-fi game, play as Sollum to defend your Volcan Towers against your enemies while exploring a planet earth with nature restored

Command destructive spaceships to obliterate hordes of enemy vessels, while quickly solving puzzles to weave through networks of vibrantly colorful, adversarial machines!

This is a VR action shooting game themed in science fiction. Mechanical frenzy is coming! Players have to teleport to survive from thousands of bullets.

Skyfront is a fast-paced multiplayer FPS built exclusively for VR. The game launches you into mesmerising zero-G arenas. But not before equipping you with an array of awesome weapons and impressive special abilities.

A modern take on the 16-bit era, A Valley Without Wind 2 blends a variety of mechanics across multiple genres, seamlessly bringing together the best qualities of old-school platform-shooters and turn-based strategy games.

Defenders of the Last Colony is a Top Down Shooter with Strategy gameplay mechanics, where you have to protect the Colony's core while you gather resources and build defenses. You play as one of the 4 classes: Fighter, Engineer, Striker or Carrier. Defenders features coop up to 4 players and 3D graphics.

Galactic Rangers VR is a first-person space action VR game, deeply immersive, just as arcade shooter should be. Grab your pair of blasters and fight through endless waves of enemies for as long as you can!