Games like Project Nautilus

"Event is a unique single-player horror narrative exploration game with a retro-futuristic sci-fi theme. Players build a relationship with an insecure AI entity, Kaizen, by typing messages and solve puzzles to progress through the story. The game boasts impressive visuals, physics-based rendering, and advanced lighting techniques, with an atmospheric soundscape providing an immersive experience."

Arid is a gritty, exploration-survival experience that challenges players in surviving the most arid place in the world. By using your skills and adaptation, you must face the loneliness, the extreme temperatures, and mysteries of the Atacama Desert.

You've only precious moments before time collapses onto itself to save your family. Warp, jump and rewind through time and space - and pray that whatever lives between it doesn't notice you.

ROUTINE is a single-player first-person sci-fi horror action game set on an abandoned lunar base with an 80s retro-futuristic vibe. Featuring excellent graphics, a dense atmosphere, and a spectacular soundtrack, it combines intriguing storytelling with immersive exploration and stellar mechanics. Players must carefully observe their surroundings, solve mysteries, and survive intense encounters without waypoint markers, blending emotional depth with moments of humor.

"Lunacid" is a single-player Horror Role Playing game, inspired by classic FROMSOFT titles like Shadow Tower and King’s Field. As an undesirable thrown into a moonlit subterranean world, you must navigate treacherous dungeons, battle creatures, and uncover secrets to confront the ancient beast guarding your only escape. Despite some bugs, "Lunacid" boasts stellar visuals, a memorable soundtrack, and a delightful yet challenging gameplay experience that marries humor and horror in a wholesome story.

"The Planet Crafter" is a survival and terraforming game where you are tasked with making a hostile planet habitable for humans. Gather resources, craft tools, build and upgrade your base, and use machines to heat the planet and create an oxygen-rich atmosphere. Watch as life forms begin to appear as you successfully terraform the planet.

"Die Young is an open-world, first-person action-adventure game where you must escape a picturesque Mediterranean island after being left for dead. Focus on staying hydrated, exploring to uncover the island's secrets, and using limited resources to equip and fight against any danger that stands in your way. This is not a typical survival game; your main goal is to escape as soon as possible."

"Jusant is a single-player Fantasy Platformer game with an intriguing story and amazing gameplay, graphics, and music. Climb a mysterious tower, master your tools, and explore different paths to uncover secrets. Enjoy breathtaking biomes, atmospheric music, and a wholesome story, but be prepared for grinding, missing optimization, and bugs if you wishlist it now on Steam."

"Infliction" is a single-player Horror Adventure game with a great story and outstanding visuals. Explore a suburban house, trapped in a nightmare of tragedy and haunted by a restless AI enemy. Uncover heartbreaking secrets, use items to unlock new paths, and hide or stun the spirit to evade its pursuit, with the goal of finding atonement.

"Song of the Prairie" is a 3D farm game set in a secluded prairie town, offering a peaceful rural life experience. Plant and harvest crops, take care of exotic animals, and build the town according to your preferences. The game features non-linear missions, encouraging exploration and flexibility in gameplay. Enjoy the satisfying process of growing plants through various stages and effects.