Games like Interregnum Chronicles: Signal

"Breathedge is a single-player open world Science Fiction game with stellar graphics, phenomenal music, and hilarious moments, despite being full of bugs. As the Man, carry your grandpa's ashes to a galactic funeral and stumble upon a universal conspiracy in a massive, wrecked space hearse. Despite the game's lack of replayability and its grindy nature, the intriguing story and good mechanics create a dense and wholesome atmosphere."

Observation is a sci-fi thriller uncovering what happened to Dr. Emma Fisher, and the crew of her mission, through the lens of the station’s artificial intelligence S.A.M.

"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."

"Deliver Us The Moon" is a Sci-Fi thriller set in a depleted Earth, where you are Earth's last astronaut on a mission to the moon to investigate a lost energy source and save humanity. Accompanied by a sinister small robot named ASE, you'll explore abandoned facilities, gather clues, and uncover secrets to determine the fate of mankind. The game tackles real-world themes, including the energy crisis and topical issues.

Escape Simulator 2 offers an immersive first-person escape room experience with new environments and complex puzzles. Explore themed rooms like Dracula’s Castle, Starship EOS, and The Cursed Treasure, each filled with hidden mysteries and challenging trials. Designed for solo or multiplayer gameplay, it supports up to 8 players with built-in voice and text chat for cooperative problem-solving.

"Firmament is a single-player adventure game with a deep plot, outstanding visuals, and a spectacular soundtrack. Explore a steampunk-inspired world and solve puzzles using your "Adjunct" device, uncovering the mysteries of three unique realms. Despite some grinding, bugs, and optimization issues, the game boasts a delightful atmosphere and highly emotional narrative."

"Ether One" is a first-person adventure game that explores the human mind's fragility through two paths. One path is a story exploration without puzzles, while the other involves solving complex puzzles to restore patients' life-changing events. The game offers accessible and optional challenging environmental puzzles, encouraging players to solve them with friends and family. It brings back pen and paper puzzle-solving for a nostalgic experience.

CAT Interstellar is a challenging and immersive single-player spaceship simulation game. Players must manage resources, navigate through alien structures, and survive in a hostile interstellar environment while uncovering the secrets of an ancient alien race. With its realistic physics and detailed 3D graphics, CAT Interstellar offers a unique and thrilling experience for fans of space exploration and sci-fi games.

"Stardrop" is a single-player mystery simulation game with an awesome story, amazing visuals, and excellent music. As Salvage & Rescue Operative Aryn Vance, you'll explore a long-lost starship and uncover its crew's tale through in-game cinematic storytelling and side missions. The game features a dense atmosphere and a wholesome, heart-felt narrative.

"Gleaner Heights" is a single-player Role Playing game with a beautiful story, good gameplay, and splendid music, but be prepared for a lot of grinding. In this game, you'll manage a farm, grow over 40 crops, tend to animals, and explore underwater caves filled with treasure. The game also offers various activities like fishing, crafting, and cooking, creating a well-rounded experience.