# alf-Life: Counter-Strike
# Warcraft III
# Diablo II
# EverQuest
# Half-Life: Day of Defeat
# Neverwinter Nights
# Age of Empires II
# Unreal Tournament
# Empire Earth
# Quake 3
and my own personal fav LAN game that rox0rs your box0rs - Quake 1 with trent reznor narrating. You got nails!

edit >> too many selections.