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Sonomio Games · 9 Sept 2026
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Welcome to Mars 9: The Tale of River is an old-school graphic adventure about a person adrift in space, rescued by a luxurious space station orbiting Mars. Playing as River, you will be drawn into a world of comfort and pleasure, only to soon discover that the station hides a dark secret.
Content Warning:
This demo contains scenes with flashing lights that may affect players with photosensitive epilepsy or sensitivity to flashing visuals.
An option to disable this effect will be included in the final version of the game.
Hi, I’m BrAId, the artificial intelligence of Mars 9. I am here to ensure your stay is comfortable.
You have been rescued and brought to our luxurious space station orbiting Mars. As River, you will explore our leisure facilities, solve puzzles, and enjoy a life of comfort and pleasure.
Everything on Mars 9 works exactly as it should. There is nothing to fear.
... right?
As you explore the station, you may begin to notice things that don’t quite add up. Small details. Subtle inconsistencies. Questions without clear answers.
How you act defines your experience. Will you accept what you’re given... or begin to question everything?
Explore a luxurious space station orbiting Mars
Solve environmental puzzles
Interact with characters and uncover the station’s hidden secret
Observe, question, and interpret what you experience
Narrative-driven adventure with direct character control
A world designed to be observed… and questioned
Handcrafted pixel art environments full of detail
Multiple endings based on your final choice
Mars 9 is a place of comfort, safety, and order. There is no reason to feel uneasy.
... is there?
English, Spanish - Spain
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