The landscape of game design is ever-changing, and within the genre of science fiction, there is an endless world of opportunities. For a level designer, creating a sci-fi room can be a daunting but exciting task. Here are 50 room ideas for your next sci-fi level:

1. Alien Jungle Terrarium: Imagine a room filled with extraterrestrial flora and fauna, enclosed within a glass structure that could be interacted with or viewed from the outside.
2. Starship Engine Room: An impressive, intricately designed room full of glowing machinery, steam, and blinking controls.
3. Galactic Observatory: A tranquil dome-shaped room filled with holographic constellations and planets.
4. Zero-Gravity Chamber: Players can experiment with the laws of physics in this weightless environment.
5. Quantum Computing Core: A room filled with enormous, hyper-advanced quantum computers emitting a mesmerizing glow.
6. Cybernetic Lab: The place where robots and other cybernetic organisms are created or repaired.
7. Alien Artifact Museum: An exhibition room filled with peculiar, strange, and mesmerizing alien relics.
8. Bioengineered Forest: A room filled with genetically modified plants that glow in the dark, possibly responding to player interaction.
9. Underwater Dome: A clear dome room with aquatic alien life swimming around.
10. Time-Travel Portal Room: A room featuring a massive, intricate device used for time travel.
11. Holographic Training Room: A room where physical and combat skills can be honed against holographic opponents.
12. Interstellar Map Room: A room with a 3D interactive map of the known universe.
13. Post-apocalyptic Bunker: A survivor’s room, filled with resources and information about the outside world.
14. Robotic Assembly Line: A room filled with robots being built and tested.
15. Futuristic Kitchen: A room with automated cooking machines and food synthesizers.
16. Nanotech Lab: Where microscopic machines are designed and fabricated.
17. Space Elevator Terminal: The waiting area for a space elevator, with windows showing the view of the planet below.
18. Teleportation Chamber: A room housing the technology for instantaneous travel.
19. Exoplanet Habitat: A room designed to mimic conditions on a different planet.
20. Spaceship Docking Bay: The bustling hub of a space station, filled with spacecraft coming and going.

The list goes on, with options like a Dyson Sphere Control Room, Cryogenic Preservation Chamber, Virtual Reality Arcade, Cybernetic Augmentation Clinic, Alien Zoo, Intergalactic Trading Post, etc. The sky’s the limit when designing sci-fi rooms.

Remember, each room should serve a purpose and tell a story. It could be a safe space for players to recuperate, a challenging puzzle to be solved, or a treasure trove of lore to be discovered. Sci-fi level design is about more than just aesthetics; it’s about creating an immersive, engaging experience for the player. Imagination, creativity, and a keen understanding of gameplay mechanics are all crucial for bringing these sci-fi spaces to life.

Whether you’re working on a first-person shooter, an exploration-based game, or a narrative-driven RPG, there’s something in this list to inspire every level designer. So take these ideas, add your personal touch, and start building your own incredible sci-fi worlds. Happy designing!