Zombie Panic: Source is a co-op oriented Survivor Vs Zombie multi-player survival horror modification for HL2. While our main priority is to make the mod as fun to play as possible, ZP:S plans to greatly expand on the core features of "Zombie panic" For HL1, with new features, impressive visuals, and atmospheric maps. More importantly ZP:S will not force players to fend against dumb and predictable AI and keep the same intense thrill of surviving against intelligent and persistent player controlled zombies as the original.