Boreality is a single-player map pack for Half-Life. (I hope you had that figured out.) This pack, however, is only Boreality part 1, consisting of the first two chapters and eight maps of play. The full completed pack would probably be about seven chapters and twenty maps.
Consists of the first two chapters (8 maps). Chances are the rest of this pack will never get finished. Well, sorry. Even so, I kept the cool intro sequence in and all the story elements (like the garbled radio message in the basement of the house), even though they'll never come to anything. Enjoy them or I'll hurt you later.