'Call of Duty: Black Ops Cold War' Free Multiplayer Week Time and How to Download On 12/17/20 at 2:38 PM EST Call of Duty: Black Ops Cold War multiplayer goes free to play starting December 17, and we want to make sure you're prepared for the festivities. Below, we outline the dates, start times and demo links you should know to hop into the action as soon as possible. Call of Duty: Black Ops Cold War free multiplayer week start and end time The Black Ops Cold War free multiplayer week runs December 17 at 1 p.m. EST through December 24 at 1 p.m. EST. Since there is no preload available for PlayStation, Xbox or PC alike, players will have to download the demo any time from now through the above-listed end date.