Grisaia Phantom Trigger Vol.4

An anime visual novel about student operatives confronting a terror attack

Frontwing · Published by Frontwing USA · Released Jan 25, 2018

Reviews: Very Positive; 98% of 139
Recent reviews: Not enough recent
Players: 1; daily peak, Oct 29, 2026
Steam Deck: Untested
Last update on Steam: 7 years ago; Jun 20, 2019
Minimum PC: VRAM320MB; 1 GB RAM · 4 GB disk; Full requirements

What is Grisaia Phantom Trigger Vol.4?

This single-player kinetic novel takes place at Mihama Academy, home to an elite student combat unit. You read a fixed narrative with no branching routes, centered on Chris as she takes responsibility for new recruit Taiga.

For you if...

+you enjoy everyday banter mixed with violent action

Not for you if...

−you want hands-on combat rather than reading a story

What players say

98% of 139 reviews are positive

Players praise the character-focused story, while some find this installment too short.

Screenshots and trailer

Grisaia Phantom Trigger Vol.4 screenshot 1

Grisaia Phantom Trigger Vol.4 system requirements

Minimum: VRAM320MB, 1 GB RAM, 4 GB of disk space.

As published by the developer.

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Minimum

OS: 7/8.1/10
Processor: Intel Core 2 DUO
Graphics: VRAM320MB, 1280×720
Memory: 1 GB RAM
Storage: 4 GB available space
DirectX: Version 9.0c
Notes: Windows Media Player 9 equivalent or higher

Does Grisaia Phantom Trigger Vol.4 have co-op or multiplayer?

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

Single-player

Does Grisaia Phantom Trigger Vol.4 run on Steam Deck?

Untested Not yet tested by Valve on Steam Deck.

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Achievements: 25
Steam features: Cloud saves, Family Sharing, Trading cards
Languages: Full audio: Japanese. Text only: English, Simplified Chinese.

Does Grisaia Phantom Trigger Vol.4 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