Left 4 Dead 1.5, "Here's how it should of been". A game assumed to kill of Left 4 Dead, seeing how in the eyes of
Valve, Left 4 Dead is an old man because it dropped to 30 dollars in retail stores. Left 4 Dead 2 is a "
DLC that was too big" says Valve, so instead they decided to release it as a full game and slap a 50 dollar tag on it and pretend Left 4 Dead was never released. It would be great to have a silenced uzi in a zombie apocalypse wouldn't it?