Get 'em while they're hot! er, well, cold I guess in this case since they're zombies and all. Gross. Anyway, Saber Interactive's World War Z is currently free on the Epic Games Store, which one might say is the best price it's ever going to be.
Loosely based on the Paramount/Brad Pitt film that's even more loosely based on the Max Brooks book of the same name, World War Z is a 4-person co-op action experience that pits teams of players against a never-ending onslaught of the undead. Think Left 4 Dead, but with a plot. There's also an element of PVP separate from the main campaign, which involves two teams of players battling it out against each other whilst also fending off swarms of ghouls, which sounds to me like these people need to get their priorities straight.
Additionally, a new update brings PvE cross-play between Xbox One and PC players, while PS4 cross-play is expected to come sometime in the future.
