Delta is a single-player modification for Half-Life 1. The protagonist Nick Farell, technical engineer complex "Delta Base", whose duties include maintenance of generators. Unfortunately, the protagonist was not misrepresented place at the wrong time ... In parallel with the technical work in the Delta Base begins at Black Mesa Research Facility leading to the resonance cascade, in which teleported to Earth extraterrestrial beings from the world of XEN.
My first Trailer. Please watch and comment.