While technically their next game Left 4 Dead is an all original property the zombie co-op shooter has the spirit of a mod that was later made into a full game. In this feature we look back at both mods and mod teams that have move on to make some terrific first person shooter style titles including, yes, a number of Valve games.
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Wings Of Prey
UDK - The Ball
UDK - Whizzle
Unreal Development Kit
Find Your Own Way Home
Operation Flashpoint: Skirmish DLC
Mytheon: The Dominion of Hades
Mytheon: The Shattered Isle
Mytheon: Colchis
