Day of Defeat: Source is a Military-themed, First-person Shooter, and Team-based Multiplayer video game created and published by Valve Corporation. The game takes place in the World-War II-themed world, the Europe in 1944 and is a remake of Day of Defeat. It revolves around between two factions such as the United States Army and the German Wehrmacht and introduces six different character classes to select and play. The main objective of the player to choose his faction and character to get into the world where he can encounter lots of players all over the world, create his alliance with other players and can battle against each other in different modes using military equipment, weapons and vehicles. The game includes a variety of weapons and engage the player into shooting experience. Work together and take down other factions throughout the game to earn experience points and use them to unlock further content or upgrade your character. It offers an open environment and lets the player to use advanced weapons to take down your enemies while collecting power-ups and experience. With enhanced mechanics, addictive gameplay, and superb graphics, Day of Defeat: Source is the best game to play and enjoy.