Games like Alien Annihilation

"Eschatos" is a single-player shooter game with stunning gameplay and a fabulous soundtrack. The game takes place in 21XX, where an alien force has taken over the Moon and is invading Earth. Players can choose from Original, Advanced, or Time Attack modes and enjoy an intuitive scoring system with a high skill ceiling. The goal is to repel the alien invasion, beat them back through space, and recapture the Moon.

Galagan's Island is an Arcade style Space Shooter paying loving homage to classic arcade style & difficulty. This Bullet Hell is sure to satisfy your Shmup Shortage! Featuring 25 LEVELS of handcrafted whimsical charm. Formations so pretty you almost don't want to destroy them.

In Shoot 1UP, players control a fleet of ships instead of a single one, with each 1UP collected adding to the armada immediately. The game features up to 30 ships on-screen at once, and weapons upgrade as more ships are collected. Local co-op play allows for up to 60 simultaneous player ships, and sacrificial bombs become more powerful with more ships. The game offers a challenging yet enjoyable manic shooting experience.

Horizon Shift is an explosive wave based, single screen shooter, with a ton of new ideas and platformer elements. Do what it takes to protect your horizon from the ever encroaching enemy attack! Use the unique risk reward multiplier system to maximise power-ups, build your bomb and destroy EVERYTHING!

"Cyberhunt" is a single-player action game with old-school arcade aesthetics and procedurally generated levels. With 500 missions, multiple enemies, weapons, and power-ups, players can aim to reach the top of the Steam leaderboards or collect achievements. The game boasts awesome pixel art graphics, original tracks, and cloud support, offering around 2 hours of replayable gameplay.

In "The Blue Flamingo," players navigate a pastel-colored world as a flamingo with a propeller hat, completing whimsical tasks and solving puzzles. Using unique movement mechanics, such as flapping and dashing, players traverse various levels filled with charming visuals and quirky characters. With no set objectives or time limits, this game encourages exploration and creativity at one's own pace.

"Bit Blaster XL" is a fast-paced, arcade-style score-chaser game where you control a ship that cannot stop moving. Avoid crashing into enemies by turning left and right, and use boost/brake to navigate through an ever-increasing amount of obstacles. Collect ammo and power-ups to survive longer and beat your high score. The game features simple mechanics, re-playability, and extra ships to unlock.

"Void Invaders" is an arcade-style shoot-em-up game with vibrant retro graphics, inspired by classics like Galaga and Space Invaders. The game features over 40 levels, 70+ enemies, and intense boss battles. With multiple game modes, full controller support, achievements, and online leaderboards, players can immerse themselves in a chaotic and explosive experience.

Syder Arcade is a fast-paced, old-school shoot 'em up game that pays homage to Amiga games of the 90s. It offers a challenging and uncompromised experience with no coins or grinding, focusing on player skill and dodging a barrage of enemy fire. With its fierce action and classic design, Syder Arcade provides a nostalgic trip back in time for seasoned players and a benchmark for newcomers to the genre.

"Mirage Feathers" is a rail shooter game with an anime theme, where you play as Notari, a cybernetic fighter from the Federation's FEATHER program. After losing her best friend Miroita, Notari fights to uncover the truth and reunite with her, with the help of Miroita's AI, Luciolla. The game features fast-paced combat as you destroy enemy aircraft in your quest to find Miroita.