Day of Defeat: Source takes the classic gameplay of the original Day of Defeat and improves the experience with Source, the advanced engine technology Valve created for Half-Life 2. With this technology, DoD: Source offers state of the art graphics (including support for HDR lighting) in optimized versions of popular maps, plus redesigned sound and all new player, weapon, and world models.

• Completely updated maps to take full advantage of the Source engine replaces
• Integrated physics simulation for ragdolls and physically simulated objects
• Higher resolution textures throughout
• Bump mapping, specular lighting, and other graphic effects, all powered by advanced Source engine technology
• Completely redesigned user interface
• All new voice, weapon, and ambient sounds