Left 4 Dead 2 is a game by Valve that has zombies. Their digital shop Steam will soon be selling Capcom’s Resident Evil 6 a game which (after not having them for a couple installments) has zombies. So they said hey, you got zombies, we got zombies. Let’s do some crossover stuff!

All of this crossover content will be available for free:

Owners of Resident Evil 6 PC will be able to select one of four survivors from Left 4 Dead 2’s iconic cast – Coach, Nick, Ellis and Rochelle – when playing PC exclusive mode, The Mercenaries No Mercy. Each character will have a special customized weapon load-out created just for use in Resident Evil 6.  In addition to the four survivors, two of the infamous Special Infected zombies from the Left 4 Dead franchise – the Witch and Mini Tank – will also make a cameo appearance in this mode, relentlessly attacking players regardless of whether a character from Left 4 Dead 2 or Resident Evil 6 is chosen. This new and exclusive content will automatically be downloaded in the background to all owners of the PC version of Resident Evil 6 from April 5.

Making the leap to the PC version of Left 4 Dead 2 will be some of Resident Evil 6’s most fearsome enemies – Lepotitsa, Napad and Ogroman. All three characters were brought to life in Left 4 Dead 2 by Valve’s renowned developers using its Steam Workshop tools. Owners of the PC version of Left 4 Dead 2 will be able to face a new deadly challenge when Resident Evil 6 characters infect Valve’s classic zombie title this spring.