Day of Defeat: Source features multiplayer, team-based gameplay set in the WWII European theatre of operations.Players choose a role and tackle goal-oriented missions based on historical operations.

• 失败的日子:资金来源多的特点；以团队为基础的游戏设定在二战欧洲战场作战.；玩家可以选择的角色和解决面向目标任务的基础上的历史行动