Games like Ostallian Core

"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.

SteamWorld Heist is a single-player Science Fiction Turn Based Strategy game with a sensational story and splendid gameplay, featuring outstanding visuals and music. As Captain Piper Faraday, you'll recruit a crew of steam-driven robots, board and loot enemy spaceships, and upgrade your robots with unique abilities and weapons in a very replayable game with a unique atmosphere and lots of grinding. Join the adventure in the vast frontier and collect stylish hats!

"StarCrawlers" is a sci-fi RPG with an interesting plot, taking you to the fringes of space to complete shady jobs for megacorps. Its perfected game mechanics, procedurally generated dungeons, and innovative combat system ensure high replayability and lots of grinding. The masterful music and atmospheric visuals, complemented by dry humor, make for a fantastic gaming experience.

"LUFTRAUSERS" is a single-player arcade game with awesome gameplay, ingenious graphics, and a perfect soundtrack. Customize your Rauser with over 125 deadly combinations, and take to the skies for epic battles against enemy planes and ships. With hilarious moments, lots of grinding, and high replayability, this game will keep you entertained for hours. Be aware of some bugs, but they don't detract from the overall experience.

Xotic is an arcade-style first-person shooter where players use a sentient weapon called the Macroterra to destroy enemies and scab plants, earning points and upgrades while re-planting life on a desolate planet. The game encourages impressive scores by offering bonuses for chain reactions, hidden collectibles, and mid-air Orb essence grabs. Upgrades allow for improved abilities and skills, such as increased score potential and the use of mobile shields.

Chorus is a thrilling single-player space combat game that offers a rich narrative experience. As the pilot of the sentient spaceship, Chorus, and its former cultist commander, players embark on a redemptive journey to fight against an oppressive religious cult. The game features fast-paced space combat, deep exploration of the cosmos, and RPG elements that let you customize your ship and character. Prepare to face dogfights, uncover secrets, and experience the power of a living ship.

Livelock is a Science Fiction Shooter game that offers both single-player and co-op multiplayer modes for up to 2 players. With a compelling plot, fantastic graphics, and engaging gameplay, players assume the role of a Capital Intellect fighting against corrupted machines to restore humanity. The game provides a rich and immersive experience, perfect for fans of the shooter genre.

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.

Relic Hunters Legend is an action-packed, co-op looter shooter set in a vibrant sci-fi universe. Play as unique characters with distinct abilities, upgrading equipment and customizing skills to become a formidable relic hunter. Join forces with other hunters to recover lost memories, relics, and defeat evil space ducks in this thrilling adventure!

Rogue Flight is a breathtaking arcade space combat game inspired by the landmark style of 80's and 90's prestige anime. Jump into true stylish arcade action with a huge host of spacecraft upgrades, game modes and multiple narrative paths. It's been 3 years since the world burned. It was ARGUS; the interstellar watchman system given control of the Solar Defense Force. In a secret facility deep be…