Protocol: Bullet Hell is an adventure, released 27 November 2025 on Linux and PC (Microsoft Windows).
What Protocol: Bullet Hell is
Protocol: Bullet Hell was released in 2025. It is available on Linux and PC (Microsoft Windows).
The premise, in the publisher's words
Survive a 2D bullet hell. Master devastating builds in the Old West, then conquer new eras of chaos—from feudal Japan to neon space zones—in an ever-expanding roguelite universe.
How it plays
Its themes are action. It is a single-player game with no multiplayer component.
What it launched against
Protocol: Bullet Hell launched on 27 November 2025, within three weeks of Metroid Prime 4: Beyond, Routine, Kirby Air Riders and Marvel Cosmic Invasion.
Released around the same time: Metroid Prime 4: Beyond, Routine, Kirby Air Riders, Marvel Cosmic Invasion.
Screenshots
All media
Quick answers
Protocol: Bullet Hell — frequently asked questions
When did Protocol: Bullet Hell come out?
Protocol: Bullet Hell was released on 27 November 2025 for Linux and PC (Microsoft Windows).
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