ULTRAKILL is a fast-paced ultraviolent old school first-person shooter developed by Arsi "Hakita" Patala and published by New Blood Interactive.

You play as V1, a combat machine fueled by blood who has ventured into the depths of Hell after the extinction of humanity.
Hell abounds with demons and tormented souls, sources of blood that you must rend apart in order to refuel yourself and survive.

ULTRAKILL's gameplay combines features from classic shooters like Quake, modern shooters like Doom (2016), and spectacle fighter games like Devil May Cry.
The game places emphasis on deliberate movement, creative gunplay, and player expression in fast-paced combat encounters and arena-style levels.
In addition, the player's health can only be restored by showering in the blood of enemies, requiring the player to adopt an aggressive playstyle that regularly places them in close combat with their opponents.

The game's prologue and first act were released in early access on September 3, 2020, and a free demo is available on Steam and itch.io.