Protocol: Zero-Day
Protocol: Zero-Day is a brutal and fast-paced Action-Roguelite set in a cyber-apocalyptic world. Wield your electric baton, master lightning-fast dashes, and survive endless hordes of corrupted anomalies…
Protocol: Zero-Day is a hack and slash/beat 'em up developed by CRYPTOS Interactive, released 1 May 2026 on PC (Microsoft Windows).
What Protocol: Zero-Day is
Protocol: Zero-Day is a hack and slash/beat 'em up game developed by CRYPTOS Interactive and released in 2026. It is available on PC (Microsoft Windows) only. It runs on Unity 6.
The premise, in the publisher's words
A catastrophic Zero-Day error has shattered the network's physics engine, leaving behind a surreal, low-poly wasteland. As a lone program equipped with experimental melee combat protocols, you must dive into the memory mazes, shatter the illusion, and purge the corrupted Entity. Reality has crashed. It's time to reboot it by force.
How it plays
It is played from a bird view / isometric perspective. Its themes are action, science fiction and survival. It is a single-player game with no multiplayer component.
What it launched against
Protocol: Zero-Day launched on 1 May 2026, within three weeks of Pragmata, Replaced, Forza Horizon 6 and LEGO Batman: Legacy of the Dark Knight.
Released around the same time: Pragmata, Replaced, Forza Horizon 6, LEGO Batman: Legacy of the Dark Knight.
Official trailer
Sourced from the publisher’s YouTube channel.
Screenshots
All media
Quick answers
Protocol: Zero-Day — frequently asked questions
When did Protocol: Zero-Day come out?
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