9th Sentinel Sisters — patch notes and updates
Stored observation / content update:
Dated developer announcements recorded from Steam. Open the source for the complete update.
| Update | Date | Excerpt / source |
|---|---|---|
| Patch Notes (Ver 1.2.0) | 2025-12-17 | Thank you for playing "9th Sentinel Sisters."This update introduces new features including dashing, skills, and attributes. We hope you continue to enjoy "9th Sentinel Sisters."Introducing New FeaturesBattleAdded DashHigh-speed movement to evade enemiesAdded skills for each characterTwo types: passive skills that activate automatically, and active skills that can be triggered at any timePassive SkillsAccelerator (Saika): Increases dash countBomber (Nina): Defeated enemies occasionally explodeSpike (Tetra): Knocks back enemies at the dash landing pointActive SkillsDeadly (Yayoi): Fires an enhanced New WaveLimit Boost (Fem): Guarantees critical |
| Patch Notes (Ver 1.1.2) | 2025-10-16 | Thank you for playing "9th Sentinel Sisters."We have fixed the issues that occurred in Version 1.1.1. We hope you continue to enjoy "9th Sentinel Sisters."Fixed an issue where clicking “Back” in the communication log did not respond when using keyboard/mouse controls. |
| Patch Notes (Ver 1.1.1) | 2025-10-09 | Thank you for playing "9th Sentinel Sisters."We have fixed the issues that occurred in Version 1.1.0. We hope you continue to enjoy "9th Sentinel Sisters."Fixed an issue where the initial setting for left-click behavior was incorrect.Fixed other minor bugs. |
| Patch Notes (Ver 1.1.0) | 2025-10-07 | Thank you for playing "9th Sentinel Sisters."This update primarily focuses on adding new features and improvements to enhance gameplay. We will continue to develop various improvements and new features for future updates, aiming for releases throughout 2025.Further details on updates will be announced in future patch notes. Thank you for your continued support of "9th Sentinel Sisters."Introducing New Features and Improvements:Enhanced Conversation FeaturesAdded a conversation log feature.Added auto-advance functionality for conversation scenes.Improved display of item effects during battle.Improved Game ExperienceAdded a visual effect where |
| Regarding the Next Update | 2025-09-13 | Based on your feedback, we are actively working on new features and improvements for 9th Sentinel Sisters.We’re aiming to deliver the following updates by the end of 2025!Planned Features & ImprovementsPlease note: all items are currently under development and may be subject to change.Conversation EnhancementsAdd a conversation log featureAuto-progress through dialogue scenesImprove visibility of item effects during battleGame ExperienceUI color change alert when 10 seconds remainInstant retry option after Game OverVisual cooldown indicators for weaponsUnlock notification implementationUsability ImprovementsEnable mouse cursor navigation in U |
| 9th Sentinel Sisters — Official Release Announcement | 2025-09-11 | 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 |
| Patch Notes（0.5.0） | 2023-12-26 | Thank you for your interest in Early Access. Thank you also for the numerous feedbacks. Our development team is working hard to prepare for the official release. We look forward to your continued support of 9th Sentinel Sisters. Player Removed the limit on the number of parts you can have and made all parts available. Various statuses are now displayed in the pause menu during operations. Changed the appearance rate and calculation method of upgrades that appear when leveling up. Changed the calculation method of criticality correction and defensive strength. Changed the method of counting the number of times of resurrection. Adjusted the met |
| Steam Deck verified | 2023-11-08 | Passed Deck compatibility testing process “9th Sentinel Sisters” is now officially compatible with Steam Deck! Wherever you like, such as on the go Enjoy 9th Sentinel Sisters. We will continue to provide updates. Thank you very much |
| Patch Notes（Rev 2890） | 2023-10-27 | Thank you for your interest in Early Access. This mini-update mainly improves the tempo and difficulty of the early stages of the game, as well as the playing environment. Player The initial movement speed of the player's ship has been increased. Reduced experience required to level up. Battle and enemy Reduced the time limit for battles caused by enemy reactions in the early to mid stages of the operation. Shortened the time limit for Threatening Enemy Reaction battles. Adjustments have been made to ease the appearance pattern and number of enemy appearances in battles in the early to mid stages of the operation. The movement speed of enemie |