HL2 Needed?

[ellanky]

Its been years since Ive played Day of Defeat: Source and Im thinking of buying it again [ Yes again, my old Steam account got hacked ]
but do I need HL2 to play it?

I know CS Source requires HL2

 

[tuxify]

Day of Defeat: Source is ran on the Source engine, so you don't need HL2, or any other game to run it.
Also, you don't need HL2 to run CS:S. Again, runs alone. There are no games (other than mods like the Age of Chivalry mod) that need HL2 to run, other than of course HL2.