Games like Rheum

"Binarystar Infinity" is a 1-bit shoot 'em up game with challenging arcade-style gameplay and handcrafted levels. Players must defend against an unknown mothership that destroyed their moon, either in single-player mode or with a friend in co-op. The game features nostalgic 1-bit graphics and smooth feedback controls, with the option for a more intense experience with friendly fire in co-op mode.

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.

"Gun Crazy" is a frenetic arcade-style shoot 'em up game with old-school pixel art and a retro soundtrack. Players must tackle bosses, dodge bullets, and use various weapons to defeat enemies, with the option to use continues for those who struggle to complete the game on their first try. The game is recommended for those who enjoy a challenging action experience.

"Saviors" is a shooter game with both single-player and local 2-player co-op modes, offering a thrilling bullet hell experience. Players can customize their ships and battle through 18 levels in a fight for humanity's survival against aliens. With a full 3D engine, this game boasts compelling music, online leaderboards, downloadable replays, and 100 Steam achievements.

In Super Killer Hornet: Resurrection, dodge and destroy enemies while answering math problems to increase your multiplier and power-up your ship in this fast-paced vertical shooter. The game features an intense soundtrack by UK rock hip hop maestros, the Sixty Fours, and classic tracks from Dylan Barry. The more math problems you solve, the more powerful you become.

"Amaranthine" is a single-player action game with a good soundtrack and dynamic horizontal scrolling shooter elements. It features procedurally generated levels, a loot system, and precise mouse controls. With a variety of enemies, legend mode with permanent death, and endless gameplay, players must travel to a distant frozen planet and uncover the mystery behind its distress signal.

"Savant: Ascent" is a rhythm-based platformer game where players control a hero named Savant who uses his music abilities to fight enemies and traverse through levels. The game features a unique combination of fast-paced action and dynamic music that intensifies as players progress through the levels. Players must master the rhythm and timing to overcome various obstacles and defeat bosses to reach the top.

"Trouble Juice" is a side-scrolling shooter roguelike set in a universe-spanning TV show tournament. Gain abilities, upgrade your gun and mobility, and earn a place in the galaxy's hall of fame. Shooting the Juice Guy provides health, but he won't forget your actions. Each character has a special ability that uses the stamina bar, making for a unique gameplay experience.

"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.

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.