Altær is a recurring event series hosted at Basement in Maspeth, New York, that functions as a site for ritualistic and immersive techno programming. The event maintains a strict no photo or video policy to preserve the integrity of the dancefloor experience. Programming typically spans two rooms, with the main Basement space focusing on driving, hypnotic techno and the Studio room offering a platform for house and queer-forward club sounds. The series is known for its commitment to underground culture and its discerning door policy, which prioritizes a dedicated community of dancers.