Fack and his friend John Sill created Star Trek: The Prospect Chronicles as an original fan fiction contribution. This was spun out from a weekly 1 page comic strip based on Star Trek: The Next Generation called, Star Trek: The Way Jen Wants It to Be. Fack spun two other series off of The Prospect Chronicles: Star Trek: Shabonee and Star Trek: The Cantabrian Expeditions.
He also was writing the first season of the now-defunct Star Trek: Tales of Discovery, was one of the writers of the audio episodes Star Trek: Equinox (now changed to a fan film production) and a third season episode of Henglaar, M.D. entitled "Thicker Than Water". He was also the STEU wikipedia entry writer for Star Trek: Grissom.