Prequel for Half-Life. Mod allows to look and take part at the events before the Half-Life. You assume the role of Dr. Gordon Freeman. You will meet Kleiner, Vance, Barney, Rosenberg and others characters.
This is kind of mod I always wanted to make myself. Some people say it's boring, but I disagree: life it not always action. And a little glimpse of Gordon's work is what HL needs. Unfortunately, mod doesn't make impression of completeness. Mapping sometimes could be better, but still, it's more a Yes than a No.