2. Left 4 Dead 2
Units Sold: 12 million
Metacritic Score: 89
Considered one of the best cooperative video games of all time by many, Left 4 Dead 2 that ranks 2nd in our list of best zombie video games of all time focuses a lot on cooperation and pits four players to survive a zombie infested scenario on their way to safety. The game is procedurally generated, meaning that no game will be the same giving it more longevity and replay value. This second installment introduces the use of melee weapons as well as more special infected.
