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Steam News11 September 20259mo ago

9th Sentinel Sisters — Official Release Announcement

Thank you for supporting 9th Sentinel Sisters. We sincerely apologize for the lack of updates since the Early Access launch in October 2023.

In this update4

Full notes

Full 9th Sentinel Sisters update

Read the full published notes in a cleaner layout. The original post stays linked below.

What changed

0 fixes7 additions3 changes0 removals
  • Store
  • Gameplay
  • Maps
  • UI and audio
  • Balance
addedWith today’s update, we’ve significantly expanded the overall game content and added several new features. Players who purchased the Early Access version can update to the full version free of charge.
addedCharactersThree new characters—Nina, Tetra, and Ray—have been added.
addedCharactersA new "Talk" feature is now available on the map, allowing character conversations and events to occur.
changedCharactersYour ending will now change depending on which character you used to clear the final missions.
addedCombatEpic boss battles against powerful Breed enemies have been added at the end of certain operations.
addedOperationsSeveral new operations have been added.

9th Sentinel Sisters changes

addedWith today’s update, we’ve significantly expanded the overall game content and added several new features. Players who purchased the Early Access version can update to the full version free of charge.
addedThree new characters—Nina, Tetra, and Ray—have been added.
addedA new "Talk" feature is now available on the map, allowing character conversations and events to occur.
changedYour ending will now change depending on which character you used to clear the final missions.
addedEpic boss battles against powerful Breed enemies have been added at the end of certain operations.

Thank you for supporting 9th Sentinel Sisters.

We sincerely apologize for the lack of updates since the Early Access launch in October 2023. We are deeply grateful to everyone who has continued to support us throughout that time.

With today’s update, we’ve significantly expanded the overall game content and added several new features. Players who purchased the Early Access version can update to the full version free of charge.

We hope you continue to enjoy 9th Sentinel Sisters—the journey is just beginning.

▼ Additions and Changes Since Early Access

Characters

  • Three new characters—Nina, Tetra, and Ray—have been added.

  • A new "Talk" feature is now available on the map, allowing character conversations and events to occur.

  • Your ending will now change depending on which character you used to clear the final missions.

Combat

  • Certain enemies now drop items upon defeat.

  • Epic boss battles against powerful Breed enemies have been added at the end of certain operations.

Operations

  • Several new operations have been added.

  • A Shop has been added to the map, allowing you to trade junk for equipment.

  • A new "VR Simulation" feature lets you rematch enhanced bosses after clearing boss missions.

Other Updates

  • UI improvements

  • Combat balance adjustments

  • Graphic enhancements

Source

Steam News / 11 September 2025

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