The year is 2371 and the Enterprise-D is in its seventh year of service (Between Season 7 & Generations Film), you play a young junior Lieutenant sent out to test upgrades on a shuttlecraft when a futuristic Borg cube emerges from a temporal portal launching a devastating attack on the Enterprise.
A total conversion for Doom 2, built for Gzdoom. The project started in 1997 and had a new demo release in 2016.