
Screenshots

Watch trailer on Steam ↗G-MODEアーカイブス+ 真・女神転生-20XX
ATLUS, G-MODE · Published by G-MODE
Positive — 90% positive (30 reviews)
Last updated 28 Sept 2026
A boy thirsting for power, and a girl who has lost her memory, In the twisted world of Valhalla, what destiny awaits them?
£13.49
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Price history
RPG · 2025 · More £5 - £15 games
Explore Valhalla as a boy craving power or a girl with no past in this 2025 RPG from ATLUS and G-MODE.
About this game
A boy thirsting for power, and a girl who has lost her memory,
In the twisted world of Valhalla, what destiny awaits them?
Series Overview
This game is a mobile game app that was exclusively released for Japanese flip phones.
It inherits popular game systems from the Shin Megami Tensei series, such as a system that allows you to communicate with demons and recruit them as allies, a system where you can fuse allied demons together to create more powerful ones, and a system where the protagonist's alignment shifts between "LAW" and "CHAOS" based on his actions.
Game Story
Set in the near-future city of TOKYO Millennium, built after the Great Destruction, the game follows a boy living in the slums of "Valhalla," a residential area of the city.
One day, after being spotted by the Temple Knights during a fight, the boy is pursued. He then meets a mysterious man through a friend who offers to help him grow stronger, on the condition that the boy defeats the ruler of Valhalla, who controls the people. In exchange, the boy receives a "COMP."
To train, the boy descends into the old underground city, where demons roam, and encounters a mysterious girl who has lost her memory.
What will the fate of these two characters be as their story unfolds?
Gameplay Features
The game not only features demon fusion ("Demon × Demon") but also allows players to fuse demons with swords to create powerful weapons.
By using specific items for "Sword Fusion," players can fuse demons with swords ("Demon × Sword") or even fuse swords with other swords ("Sword × Sword"). The powerful swords created through this process can be equipped by the protagonist to enhance their strength.
As players navigate crucial events throughout the story, each decision they make will dramatically shape the course of the narrative, ultimately determining the fate that awaits them at the end.

System Requirements
Will my PC run this? →Minimum
- OS: Windows 10 64bit
- Processor: 64-bit
- Memory: 1 GB RAM
- Graphics: Graphics card with DX10 (shader model 4.0) capabilities
- Storage: 500 MB available space
Supported Languages
Latest news
AnnouncementsOfficial
Release Postponement Notice
Thank you for your continued interest and support. We previously announced that the Steam version of G-MODE Archives+ "Shin Megami Tensei -20XX-" would be released on May 8, 2025. However, due to longer-than-expected processing times, we regret to inform you that the release has been postponed. Please rest assured that this delay is solely related to final release procedures, and we expect to launch the game in the very near future. We sincerely apologize for the inconvenience and appreciate your understanding. The new release date will be announced as soon as preparations are complete. For the latest updates, please follow us on our official X (formerly Twitter): @GmodePR Thank you for your patience and continued support.Read full article on Community Announcements (GMmaster)






