Kama Sutra is a 32-level Doom 2 megawad released in March of 2005, created by Adolf "Gusta" Vojta and Jakub "method man" Razak, a pair of Czech speedrunners. They are together known as the "KSteam" after this project.
This run uses Skill 4, Ultra-Violence. This is the most common skill level used in the Doom speedrunning and TAS community.