Call of Duty: Black Ops 2 is free-to-play this weekend on Steam and it's on sale for 33 percent off, $40 for the standard game and $54 for the Digital Deluxe edition. The sale runs through Monday, February 25, and the free weekend ends on Sunday, February 24 at 1 p.m. PT.

The Digital Deluxe Edition includes the Nuketown Zombies and Nuketown 2025 bonus maps, weapon camo skin, two player card backgrounds, the game's official soundtrack and a download of Call of Duty World at War. It's a war-torn weekend, with another massive shooting game available for free on Steam over the next few days: Gratuitous Space Battles.