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The setting is Yakushima in 1999. A story depicting Aegis' unknown past.

Steam ↗Windows
GameWiki EditorialReviewed 5 guide topics

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About G-MODEArchives+ Persona3 Aigis THE FIRST MISSION

G‑MODEArchives+ Persona3 Aigis THE FIRST MISSION is a 3D action RPG side‑story for feature‑phone‑style Windows play. It follows the android Aegis ten years before the events of Persona 3, set on Yakushima’s Kirijo Ergonomics Institute during a training incident. Players level Aegis, equip weapons, and use the series’ Persona system to battle island shadows while encountering both original and main‑story characters.

01 / THE GUIDE

Story Context

The narrative unfolds in 1999 on Yakushima, ten years prior to Persona 3, during a Type 7 Aegis training exercise. An incident occurs, revealing Aegis’s untold past and linking her to characters from the main game. Original characters with strong personalities also appear, shaping relationships with Aegis from that era. The setting blends island nature with the Kirijo Ergonomics Institute, providing a backdrop for the mystery.

  • Observe how original characters interact with Aegis to infer back‑story clues.
  • Compare the island’s environment with later Persona 3 locations for thematic links.

02 / THE GUIDE

Combat System

Combat is action‑oriented; defeating enemies grants experience points that raise Aegis’s level. Three weapon types each have unique attack methods, encouraging players to switch based on battle conditions. Shadows appear on the island as foes, and players must manage hit points and attack strategies to survive encounters.

  • Try different weapons to see which attack style fits each shadow type.
  • Monitor Aegis’s hit points and use restorative items when needed.
G-MODEArchives+ Persona3 Aigis THE FIRST MISSION official gameplay screenshot
Publisher-provided gameplay image · G-MODE, ATLUS

03 / THE GUIDE

Equipment Management

Money earned from battles can purchase equipment at the Workshop located in the Lab. The Workshop also sells items that restore Aegis’s hit points. Equipment choices affect combat, and players can switch weapons to adapt to various situations, adding a layer of strategic preparation.

  • Visit the Workshop regularly to keep equipment up‑to‑date.
  • Balance spending on weapons and restorative items for sustained battles.

04 / THE GUIDE

Persona System

Aegis can summon Personas for powerful attacks and support skills, consuming SP (Soul Points). SP recovers over time, limiting continuous use. As Aegis reaches certain levels, her Personas learn new skills, expanding tactical options during combat.

  • Plan SP usage to avoid running out during tough encounters.
  • Level up Aegis to unlock additional Persona skills.

05 / THE GUIDE

Platform Features

The game runs on Windows with optional gamepad support, including DualShock and DualSense controllers. Steam Cloud and Family Sharing are listed among the game’s available Steam features. Single‑player mode focuses on the solo narrative experience.

  • Enable Steam Cloud to keep progress across installations.
  • Experiment with a gamepad to see which controller feels most comfortable.

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G-MODEArchives+ Persona3 Aigis THE FIRST MISSION videos

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    QUICK ANSWERS

    G-MODEArchives+ Persona3 Aigis THE FIRST MISSION FAQ

    What year does the story take place?

    The story is set in 1999, ten years before the main Persona 3 timeline.

    How does a character gain new Persona skills?

    Persona skills are learned automatically when Aegis reaches specific level thresholds.

    Can I use a controller to play?

    The game supports DualShock and DualSense controllers, though it can also be played without one.

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    SOURCES & CREDITS

    Official resources and further reading

    Original editorial guidance. Game imagery and trailers are provided by the publisher through Steam. Media and reference links checked 2026-10-23. Game versions, supported platforms, and balance can change; consult the linked release notes for current details.