The developers haven't forgotten about the old project and continue to support it.
Saber Interactive has returned to World War Z once again. They have released a couple of add-ons and the Heavy Ordnance Update for the cooperative zombie shooter.
The game added 24 perks for heavy weapons (including the chainsaw and flamethrower) and 12 perks for standard weapons; six new mutators; and three new portrait frames.
The Raging Phoenix Skin Pack and Vibrant Halloween Skin Pack add-ons include a series of skins inspired by the mythical phoenix, as well as decorated with swarms of bats and smiling pumpkins.