Play Half-Life with friends! Players fight computer-controlled monsters through the original Half-Life storyline or hundreds of available co-operative scenarios. Also includes a plethora of new weapons, enemies, visuals and gameplay systems. Customization features allow each map to use its own unique weapons and enemies.
Co-operative, updated conversion of Neil Manke's classic They Hunger series coming with Sven Co-op 4.0! Also: Free copies of Half-Life for the needy :P.