Games like Spacefighter Rukia

"Star Valor" is a single-player, open-world space simulator where players can explore the galaxy, engage in space combat, and manage their own spaceship. With various ships, weapons, and equipment to choose from, players can customize their gameplay experience while completing missions and uncovering the game's storyline. The game also features a dynamic economy, AI-controlled factions, and procedural generation of planets and systems for a unique experience each time.

"Stellar Tactics" is a turn-based space combat and exploration game with classless character progression and customizable squads. The game features 160,000 Star Systems, 40 ships, and various equipment items that can be upgraded with Nano-Tech. Players can mine asteroids, trade commodities, capture ships, and engage in ground battles against hostile forces. The game also includes classless character progression with 240 perks for unrestricted customization.

Ring Runner combines the fast-paced action of space combat with the rich story and skill variety of an RPG. Trek across the universe in a 30 hour long story-driven campaign based on a companion Sci Fi novel, or challenge 6 scenarios alone, cooperatively, or competitively through local or online multiplayer.

"Stardust Galaxy Warriors: Stellar Climax" is a 1-4 player couch co-op action shooter game, combining SHMUP and Brawler-like gameplay with light RPG elements. Choose from 5 distinct characters, each with special abilities and superweapons, and an extensive selection of primary and secondary weapons. Play through a 10-level campaign, Endless Gauntlet-mode, and Challenge mode, all set to an album-length soundtrack. Meet Gundula von Übelvamp, but don't expect shocking plot twists.

"Sector Six" is a side-scrolling, sci-fi shooter with a unique silhouette aesthetic and procedural loot. As a space pilot, you must save the universe from the Eight Machines by building and customizing your spaceship's performance, appearance, and abilities. The modular difficulty system allows you to tailor the challenge for better rewards, making for a truly personalized experience. Master the ship combat, learn enemy patterns, and obliterate foes with lasers and missiles in this thrilling adventure.

"3089" is a Science Fiction Shooter game that offers both single-player and 2-player co-op modes. The game generates procedurally-generated, open-world terrain, enemies, weapons, items, and quests, providing a unique experience every time. Players can construct and customize their weapons and embark on unique quests made from individually generated task lists. However, be prepared for some grinding.

VoidExpanse is a science fiction action-RPG set in deep space, allowing players to explore procedurally-generated galaxies, engage in real-time combat, and interact with dynamic factions. The game features complex mechanics for mining, trading, and character customization, as well as a meaningful storyline and options for both single and multiplayer gameplay. Upgrade your ship, complete missions, and advance through diverse skill-trees in this open-world space adventure.

In "Landinar: Into the Void" , play as a bounty hunter for the Stone Eyed Children in the Landinar Empire, exploring sectors, stations, and hidden areas while building your own spaceship with unique hull templates and ship parts. Engage in randomly generated bounty missions, meet diverse characters, and uncover the quadrant's secrets at your own pace, with the freedom to shape your own adventure.

"Space Reign" is a combat-focused space simulation game where players represent a space corporation vying for control over valuable deep space resources. Begin with a single ship, complete contracts to earn credits, and expand your influence by claiming sectors and acquiring new, customizable ships. Utilize both first-person control and RTS-like tactical views to manage your fleet and adapt to a dynamic environment.

In Rune Knights, players become superhero knights with elemental powers, battling monsters and completing quests in a fantasy world. With hack-and-slash combat and character customization options, players can upgrade skills, weapons, and armor. Play solo or with friends in online cooperative mode, tackling challenges and dungeons for epic loot and rewards.