"Day of Defeat: Source is a team-based first-person shooter multiplayer video game developed by Valve Corporation. Set in World War II, the game is a complete remake of Day of Defeat, updated from the GoldSrc engine used by its predecessor to the Source engine. The game was released for Microsoft Windows on 26 September 2005, distributed through Valve's online content delivery service Steam."@en . . . . . . . "Day of Defeat: Source"@en . . . .