9th Sentinel Sisters

Side-view roguelite shooter with customizable mechs and branching mission routes

Live Wire · Released Sep 10, 2025

Reviews: Mixed; 69% of 288
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Verified
Last update on Steam: 10 months ago; Dec 17, 2025
Minimum PC: GTX 760; 4 GB RAM · 1 GB disk; Full requirements

What is 9th Sentinel Sisters?

In this side-view action roguelite, clone pilots fight to reclaim Earth after aliens force humanity underground. You guide a mech through short combat stages, shoot approaching alien hordes, and combine weapons such as lasers, drills, and missiles with reinforcement parts.

For you if...

+you prefer aiming your shots over fully automatic combat
+you like bleak science fiction and anime-style character designs

Not for you if...

−you want cooperative play rather than a solo game

What players say

69% of 288 reviews are positive

Players praise the horde combat and visual style. Common complaints concern limited content, repetitive music and environments, and uneven weapon balance.

Screenshots and trailer

9th Sentinel Sisters system requirements

Minimum: GTX 760, 4 GB RAM, 1 GB of disk space.

As published by the developer.

Can my PC run 9th Sentinel Sisters?

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Minimum

OS: Windows® 10 / Windows® 11 64-bit
Processor: AMD A8-7600 / Intel® Core™ i3-3210
Graphics: AMD Radeon™ R7 260X / NVIDIA® GeForce® GTX 760 / Intel® Iris® Xe Graphics G7
Memory: 4 GB RAM
Storage: 1 GB available space
DirectX: Version 12

Does 9th Sentinel Sisters have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Single-player

Does 9th Sentinel Sisters run on Steam Deck?

Verified Yes, Verified by Valve: it works on Steam Deck out of the box.

All functionality is accessible with the default controller configuration
Shows Steam Deck controller icons
In-game text is legible on Steam Deck
Default graphics settings perform well on Steam Deck
External controllers are not supported for the primary player

PC version details

DRM: None declared on Steam
Controller: Full controller support
Platforms: Windows
Achievements: 55
Steam features: Cloud saves, Family Sharing
Languages: Text only: Japanese, English, Simplified Chinese, Traditional Chinese.

Does 9th Sentinel Sisters use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 27, 2026. How to filter AI games on Steam