Kitty: Isolation (2021)

Kitty: Isolation is an ultra-hard Alien: Isolation mod intended to be unrelentingly difficult, primarily created to provide Alien: Isolation speedrunners with the ultimate challenge. While Kitty: Isolation can be enjoyed by casual players as well, many of the changes are speedrun-oriented, either to skip long, tedious sections of the game, or to render common speedrun tactics and exploits useless. If the ultimate Alien: Isolation challenge is what you're after, Kitty: Isolation is for you.