Half-Life Adrenaline Pack (PC, 1999) 3-disc set w/ original box & owner''s manual

3D video game
title - Half-Life: Adrenaline Pack
brand - Sierra Studios
games - Half-Life, Opposing Force & Team Fortress Classic
included - Owner''s Manual and Opposing Force booklet
age - 17+
Condition: Discs are in Like New condition; Manuals, etc. are in excellent condition. Box shows minor wear. CD Keys included for Half-Life and Opposing Force. Seller does not accept returns.