Games like Duke of Alpha Centauri

"Asteroid Bounty Hunter" is a space shooter centered around the veteran hero John and his AI spaceship. The game features unique boss fights, defense of nearby planets from asteroids, and battles against other bounty hunters. The concept revolves around farming experience for upgrades and collecting mastery points from rival ships. — NO RELEASE DATE OR DEVELOPER/PUBLISHER MENTIONED.

"Distant Space" is a 2D pixel art real-time strategy game set in the vastness of space. As the captain of a space fleet, players must manage resources, build and upgrade ships, and engage in tactical battles against alien threats. The game offers a procedurally generated galaxy, providing unique challenges and opportunities in each playthrough. Exploration, diplomacy, and combat are key elements of this engaging space exploration experience.

"ShipLord is a survival game set in space where players dodge asteroids and battle bosses to collect energy and progress through unique levels. A medal-based system rewards players with upgrade points for completing levels on higher difficulties, which can be used to upgrade shield, energy tractor, and force field abilities. With over 100 upgrade points available, players can improve shield and force field duration and cool down times, as well as decrease energy spawn time."

"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.

"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 "Revolution Ace," humanity is at risk of extinction, and players must infiltrate the AI core to win the war against machines. The game features a customizable ship and numerous weapon configurations, as well as realistic physics and the ability to fight a variety of enemies on air, land, and sea. Online and local two-player co-op are also available. The game is powered by the Unreal engine and offers a deeper, more tactical shoot'em up experience.

"Jet Lancer" is a thrilling aerial combat shooter where you play as Ash Leguinn, a skilled mercenary pilot taking on sky pirates and giant robots. With precise controls and a challenging story-driven campaign, you'll dodge enemy fire, upgrade your plane, and save Root City from mechanized weapons. The game offers a rush of supersonic speeds and intense battles, making it easy to learn but hard to master.

Dead Effect is a sci-fi FPS game with over 5 hours of single-player campaign, featuring 12 missions and a gripping story. Survive against hordes of zombies in Survive and Biohazard modes, and explore multiple rooms for extra items and ammo. With a unique set of achievements and the special ability of Bullet Time, prepare for an intense and immersive experience.

"Let Them Come" is a pixel-style survival shooter where you play as mercenary Rock Guner, tasked with eliminating alien hordes on a spaceship. Upgrade and customize your arsenal, utilizing FRENZY mode for maximum damage, as you face an onslaught of diverse enemies and boss creatures. Competitive players can climb online leaderboards and unlock new mixtapes as rewards for their shooter prowess.

Solareth is a single-player casual top-down arena shooter set in an immersive space battleground, featuring intense waves of increasingly challenging enemies. With over eight diverse weapons and a fantastic atmosphere, the game demands quick reflexes, sharp tactics, and offers a highly replayable experience despite some bugs and heavy grinding. Its intriguing story, amazing mechanics, and good music enhance the thrilling, blood-soaked action.