Endorphins are opioid neuropeptides in mammals. Endorphin may also refer to: Endorphin (software), A dynamic real-time motion synthesis software from NaturalMotion Endorphin (band), an electronic act from Cairns, Australia "Endorphin", a song by the musical metal band August Burns Red on their album Thrill Seeker "Endorphins" (song), a 2013 song by Sub Focus with vocals from Alex Clare Alternative spelling Endorphine (band), Thai pop singing group from the GMM Grammy records company, Bangkok, Thailand Endorphine (film), a 2015 Canadian film See also Endorfun, a 1995 single-player puzzle computer game