Wargaming.net announces Order of War: Challenge, a standalone multiplayer add-on for Order of War, updating the World War II real-time strategy game with exclusive bonus content and a focus on fast-action gameplay. The add-on will be released through Steam, and will be free to those who own the original game. Challenge will offer six extended modes, 12 maps, co-op survival missions, and hundreds of units, all detailed on the Order of War Website. Here are some Order of War: Challenge screenshots and a gameplay trailer, which is embedded below.