On Monday, Activision announced plans to offer a free preview of Call of Duty: Black Ops Cold War’s various Zombies modes. Starting on Thursday, Jan. 14, players can download a stand-alone version of the Cold War’s Zombies’ menu from Battle.net, Xbox Live, and PlayStation Network. Players can then play Zombies modes for free until Jan. 21, when they’ll need to purchase Call of Duty: Black Ops Cold War in order to continue their undead hunts.