Games like ExtraGalactica

Steredenn: Binary Stars is an expanded version of the award-winning shoot 'em up game, Steredenn, offering infinite replayability through intense boss fights, randomly generated environments, and a vast arsenal of weapons. Play solo or with a friend in local co-op mode, choosing from 5 playable ships, each with unique abilities. The game provides quick, intense sessions featuring rock-hard boss battles that will keep you coming back for more.

Overload is a Sci-Fi shooter game with both single-player and multiplayer modes, offering an engaging story campaign across 15+ atmospheric levels and various customization options. With 16 upgradeable weapons, over 20 robot types, and a pulse-pounding soundtrack, this game delivers intense action, awesome graphics, and high replayability, including Challenge Mode and survival challenges. However, be prepared for some grinding.

"Alien Scumbags" is a sci-fi shooter game where players fight against waves of alien enemies. The game features fast-paced action, a variety of weapons, and a unique art style with hand-drawn characters and environments. Players must survive and defeat bosses to progress through different levels and unlock new content. Note: The provided Steam ID does not contain enough information to generate a more specific summary. The description above is a general summary of a typical alien shooter game.

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!

Sektori is a fast-paced, intense twin-stick shooter featuring sensational gameplay, stellar graphics, and outstanding techno music. Players navigate dynamically changing levels across five worlds, customizing ships and upgrades to face relentless enemies and epic evolving bosses. With multiple difficulty settings and varied game modes, it offers high challenge and replayability.

"Enemy Mind" is a side-scrolling space shooter for PC with a classic 8-bit art style and 8 levels of challenge across 70 waves. As a being of pure psychic energy, you can take over and control any of the 20+ unique ships you encounter, each with their own power and ability. The game features an adaptive story system that changes with your play style and offers multi-player co-op for up to four players. The soundtrack is an original chiptune-inspired creation by Rainbow Kitten.

"Desecrators" is a Science Fiction Shooter game set in 4096, where players embark on a daring journey to plunder technology and riches across colonized star systems. Experience 6DOF piloting while combating rival desecrators and relentless enemy attacks using an arsenal of 25+ weapons. This thrilling single-player or multiplayer/co-op adventure boasts a captivating soundtrack to enhance your gameplay experience.

Steredenn: Binary Stars is an award-winning rogue-like shoot'em up game with intense boss battles, randomly generated environments, and a vast arsenal of weapons. Experience quick, challenging sessions with upgrades and space events, available now on PC, Xbox One, PS4, Nintendo Switch, and iOS. Receive critical acclaim with user ratings around 90% on Steam and an average press rating of 8/10.

Project X: Light Years is a high-octane side-scrolling shoot’em-up where players pilot advanced spacecraft against relentless alien forces and massive bosses. Combining modern graphics and refined mechanics with a nostalgic soundtrack, it honors the classic while delivering intense, strategic combat. Prepare your ship with powerful weapons and upgrades for an epic space battle.

"Hell is Other Demons" is a retro-style bullet hell shooter with fast-paced, challenging combat and a campaign set in a vibrant, over-the-top depiction of hell. The game features unforgettable style with bold art and a synthwave soundtrack. The Arcade Mode offers infinite replayability with procedurally generated action. Practice and creativity are rewarded as you battle against thousands of demons and memorable bosses.