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MARY - メアリ姫の奪還

YORUROJI is developing a full version of the text adventure game MARY: The Rescue of Princess Mary for Steam, with a release planned for 2027. The Steam store page is public, and the game will not be localized due to its Japanese-language wordplay core.

Synthesized from 4 Yomimono stories · updated Aug 20

YORUROJI announced on August 14, 2026 that it is building a full version of MARY: The Rescue of Princess Mary for Steam, targeting a 2027 release. The Steam store page is live. The full version expands a short adventure currently on the game submission site unityroom, where it has passed 500,000 page views.

The unityroom version was made during the Unity 1 Week Game Jam, and many planned features were cut because of the short production period. Its core mechanic lets players add a single character to a button that decides the protagonist's actions, changing the story's meaning and direction. That version contains over 400 branching paths. The full version will grow the gimmicks and story to more than five times the original size, while keeping the short-session replayability.

New mechanics include multiple buttons appearing at once and a settings menu where adding a character to the 'Log' button turns it into 'Rogue', starting a roguelike game. The game is built on Japanese wordplay and will not be localized.

Key facts

Developer
YORUROJI
Announcement date
August 14, 2026
Platform
Steam
Release window
2027
Original version
Short adventure on unityroom with over 400 branching paths
Original version page views
Over 500,000
Expansion scale
More than five times the original size
Localization
Not localized due to Japanese wordplay core

Timeline

Synthesized by Yomimono from the cited Yomimono stories below, each itself sourced, then editorially reviewed. Every fact links the story it came from.

Facts

Release
game · 2027 · Steam · 2026-08-14
Announced
full version for Steam · 2026-08-14

Connections

Produces of
yoruroji

Structured graph also available as JSON at /public/entities/mary. CC BY 4.0.

All coverage

7h ago

Blue Mary From KOF XIV Gets 1/6 Scale Figure From Very Cool

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5d ago

Project Hail Mary VR Game Puts Rocky at the Center of an Untold Chapter

Maze Theory is developing Project Hail Mary: Journey Among the Stars, a mixed reality game based on Andy Weir's novel. Weir wrote a new chapter for the game that appears in neither the book nor the film. Players take the role of Ryland Grace and work with the alien Rocky to repair the Hail Mary. The studio demoed the game at gamescom in Cologne, which ran August 26-30.

Aug 29

Project Hail Mary VR Game Trailer Shows Rocky Up Close

Maze Theory released a gameplay trailer for its VR survival adventure game Project Hail Mary: Journey Among the Stars at gamescom 2026. The game is based on Andy Weir's novel and the summer 2026 Amazon MGM Studios film starring Ryan Gosling, but features an original story written by Weir that covers an untold part of the Hail Mary mission. Players take on the role of protagonist Ryland Grace in the cockpit of the spacecraft, where they can interact with objects and operate controls with high physics accuracy. The trailer highlights the alien Rocky, who communicates through a musical language and broken machine translation, and reacts expressively to player actions. The demo lasted under five minutes and included comedic moments, but the full game reportedly includes tense survival elements beyond a simple space walk. The release date is undecided, but the game is planned for Meta Quest, PICO, and Android XR platforms, with a scheduled launch in late 2026. Wishlisting is available on the Meta store page.

Aug 14

MARY: Princess Mary Rescue Full Version Announced for Steam in 2027

Indie developer YORUROJI announced on August 14, 2026 that it is developing a full version of the text adventure game MARY: The Rescue of Princess Mary for Steam, with a release planned for 2027. The Steam store page is now public. The game is a significantly expanded version of a short adventure currently available on the game submission site unityroom, where it has surpassed 500,000 page views. The core mechanic lets players add a single character to a button that determines the protagonist's actions, changing the story's meaning and direction. The unityroom version contains over 400 branching paths. The Steam full version will expand the gimmicks and story to more than five times the original size. The unityroom version was created during the Unity 1 Week Game Jam, and many planned features were cut due to the short production period. The full version aims to retain the short-session replayability while adding new mechanics, such as multiple buttons appearing simultaneously and a settings menu where adding a character to the 'Log' button turns it into 'Rogue', starting a roguelike game. The game is centered on Japanese wordplay and will not be localized.

Jul 2

Project Hail Mary Begins Streaming on Prime Video July 3

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Jun 19

Project Hail Mary Film Hits Prime Video Unlimited Streaming Early

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