9th Sentinel Sisters

9th Sentinel Sisters

Released Sep 2025

The battle of the clone girls unfolds on a post-apocalyptic Earth, devastated by the alien life form known as "Bleed." Pilot the manned weapon "Father" to eliminate enemies. Upgrade weapons, create powerful builds, and strategize to successfully clear stages.

69% positive · 283 reviews
Done
All announced content has been released
Medium confidence
Done
All announced content has been released
Medium confidence

Where to buy

Steam $7.99
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Evaluation

9th Sentinel Sisters graduated from Early Access to its full 1.0 release on September 10, 2025, with a major content addition that included new characters, boss battles, new operations, and numerous gameplay systems. Following launch, the developer shipped two meaningful feature updates: Version 1.1.0 on October 7, 2025 (conversation features, UI improvements, and usability additions), and Version 1.2.0 on December 17, 2025 (dashing mechanics, per-character active and passive skills, weapon attributes, new enemy types, and additional parts). The October 7, 2025 patch notes stated the team would "continue to develop various improvements and new features for future updates, aiming for releases throughout 2025." That statement targeted a 2025 horizon, and Version 1.2.0 on December 17, 2025 plausibly fulfilled that commitment. No further content has been announced beyond the 2025 window, and the last developer communication was on December 17, 2025. Looking at the post-launch update pattern: two major feature patches shipped in roughly 10 weeks after the September 2025 release (early October and mid-December). That established an interval of roughly 6–10 weeks between updates during the active 2025 period. As of October 1, 2026 — approximately 9.5 months since the last developer communication — silence has far exceeded the historical update cadence. No new announcements, roadmaps, or patch notes have appeared since December 17, 2025. The developer's own stated goal was updates "throughout 2025," a window that has now closed. With no outstanding announced commitments and silence well beyond the historical update window, the game's content development appears to have concluded with the December 17, 2025 update.
Evidence
Version 1.2.0 shipped with dashing mechanics, per-character skills, weapon attributes, new enemy types, and additional parts. Last developer communication on record.
news post · Dec 17, 2025 source content shipped
high
Version 1.1.0 shipped with conversation features, UI improvements, and usability additions. Patch notes stated the team will 'continue to develop various improvements and new features for future updates, aiming for releases throughout 2025.'
news post · Oct 7, 2025 source content planned
high

Media

Details

Developer
Publisher
Live Wire
Achievements
55
Platform
Windows
Controller
full support
Steam Deck
Verified
Players
Single-player

About this game

<Story>

A long time ago, an unknown meteorite came to earth. The meteorite was sleeping quietly deep in the earth, waiting for the time to wake up.

10,000 years have passed, and when humans have built civilization, a change occurs in the meteorite.

Countless alien "breeds" are born from the meteorite and quickly devour the planet.

The true identity of the meteorite was the egg of an alien life form.

The land above is destroyed, and national functions disappear. Humanity is defeated.

Those left behind are forced to live in sturdy underground shelters.

The shelter was named "Ark" and became humanity's last stronghold.

In order to take back the land, humanity has gathered its wisdom and materials and developed two "anti-bleed" combat weapons.

One is the manned weapon “Father”

One is a combat clone soldier with the appearance of a girl who becomes Father's pilot.

They live in a deserted front-line base and then go off to fight.

<Experience>

9th Sentinel Sisters is a casual action game with roguelite elements. You can easily and easily enjoy the exhilarating feeling of wiping out aliens in a desolate near-future atmosphere.

・Create your own build with 16 types of weapons and 37 types of reinforcement parts!

You can experience the exhilarating feeling of defeating a large number of approaching aliens with powerful weapons such as lasers, drills, and missiles.

・Decide the strategy route

Whether you want to take on strong enemies, strengthen your weapons, or recover damage, assess the situation and aim to clear the game!

・The mission for each stage is simple

You can concentrate and enjoy it in a short period of time.

・Choose a hero and enjoy various strategies.

<Game Features>

  • Roguelite casual action

  • Side view Twin stick

  • A post-apocalyptic world destroyed by aliens and a fighting girl

  • 16 types of weapons

  • 37 types of reinforced parts

  • 6 heroes

  • Full controller

Last evaluated Oct 1, 2026
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