Just Cause 2′s multiplayer mod will arrive on Steam December 16, according to it’s page on Steam. The final beta test for the mod is scheduled to end two days earlier. “JC2-MP is a project to bring multiplayer to Just Cause 2 in all of its magnificent glory,” reads the page blurb. “Imagine the chaos of normal Just Cause 2, then extending it out to dozens, hundreds, and even thousands of players.” The final beta phase ends on December 14. Thanks, Eurogamer.