As the game progresses, players can obtain upgrades such as the ability to dash—which can be used to break through wooden barricades and access otherwise unreachable areas—and to grow in size.

[1] An amorphous entity known only as “The Creature” is held in a containment unit within a research facility owned by a company called Relith Science.

Eventually, the creature returns to its initial containment area and absorbs the last piece of its stolen genetic code, allowing it to reconstitute a human form, which takes the appearance of the scientist it originally infected.

[11] Velasco sought out Phobia to do the soundtrack after he saw footage of an early animation test on Twitter, and immediately became fascinated by writing a score from a perspective of a monster.

[12] The official vinyl pressing, done in collaboration with Devolver Digital, featured an injection of red hygroscopic liquid to resemble blood splatters.

[19] Christmas-themed downloadable content titled Greatest Time of Year was released for free on Windows, macOS and Linux on December 25, 2020, and for consoles on March 19, 2021.