I'm very curious: what game are they playing in today's (Jan 02, 2013) PvP comic?
This is a reference to ZombiU, a game for the WiiU. The game features permadeath, and you can go back and raid your previous lives' corpses for what you were carrying at the time. You can also see the large WiiU gamepad in Francis' hands in the last panel. The Queen's Guard soldier in the third panel is also a character featured prominently in the game's promotional art.