Sonomio Games' narrative sci-fi adventure invites players to uncover the dark secret hidden aboard a luxurious space station orbiting Mars.
Welcome To Mars 9 will launch on Steam and Nintendo Switch on September 16th, 2026.
Previously scheduled for September 9th, the game will now launch one week later, on September 16th.
A Story-Driven Adventure About Ethics, Humanity and the Choices We Make
In Welcome To Mars 9, players step into the role of River, a space castaway who awakens aboard Mars 9 with no memory of arriving there.
What initially appears to be a luxurious sanctuary orbiting Mars gradually reveals a much darker truth.
Welcome To Mars 9 is a narrative-driven sci-fi adventure focused on mystery, storytelling, atmosphere and ethical dilemmas. Throughout the adventure, players will face difficult moral choices that challenge their values and perspectives, culminating in a final decision.
Five Possible Endings
River's journey culminates in a final decision leading to one of five possible endings.
Key Features
Narrative-Driven Experience
A story-focused adventure where dialogue, exploration and discovery drive the experience.
Ethical Dilemmas
Face difficult moral questions that invite players to consider their own values and perspectives.
Five Endings
River's journey culminates in a final decision, with five possible endings.
Pixel Art Visual Style
Detailed pixel art environments designed to reinforce the game's science-fiction atmosphere, mystery and storytelling.
English & Spanish
The game will be available in both English and Spanish.
Availability
Welcome To Mars 9 will launch on September 16th, 2026 on Steam and Nintendo Switch.
A free demo is currently available on Steam, allowing players to experience the opening section of River's adventure.
Steam:
https://store.steampowered.com/app/2434330/Welcome_To_Mars_9/
Nintendo Switch - Europe:
https://www.nintendo.com/es-es/Juegos/Programas-descargables-Nintendo-Switch/Welcome-To-Mars-9-The-Tale-Of-River-3039726.html
Nintendo Switch - Americas:
https://www.nintendo.com/us/store/products/welcome-to-mars-9-the-tale-of-river-switch/
Review Keys
Review keys are available for press and content creators upon request.
Press Contact
Studio: Sonomio Games
Press / Business Contact: sonomiogames@gmail.com
Website: https://www.sonomiogames.com
Steam Developer Page: https://store.steampowered.com/curator/45292058-Sonomio-Games/
Press Kit:PressKit_WelcomeToMars
About Sonomio Games
Sonomio Games is an independent game development studio based in Spain and founded by Verónica Rodríguez and Antonio Carlón. The studio develops original indie games ranging from classic point-and-click adventures to arcade and experimental experiences. Welcome To Mars 9 is the team's latest project.