Completed 6 games

Game	Achievements	Playtime
Half-Life	—	about 12 hours
Half-Life 2	100% (33 of 33)	about 17 hours
Half-Life 2: Episode One	100% (13 of 13)	about 4 hours
Half-Life 2: Episode Two	?	about 10 hours
Half-Life: Blue Shift	—	about 3 hours
Half-Life: Opposing Force	—	about 8 hours