December 28, 2007 (ModDB)  October 3, 2008 (Steam)

December 28, 2007 (ModDB)
October 3, 2008 (Steam)

Zombie Panic! Source is a cooperative survival-horror first-person shooter modification for Half-Life 2. It is the sequel to the 2004 Half-Life mod Zombie Panic. Set in the middle of a zombie apocalypse, players start as a small group of survivors attempting to stay alive. Each map will have its own objectives to complete and win the round or survive by a period of time.

Initially released on December 28, 2007, via the ModDB website as a public beta, it would later be re-released for Steam via Steamworks on October 8, 2008, as a free-to-play game.

It would later receive a spiritual successor in the form of Contagion in 2014.

Also See

Synopsis

Dive into the zombie apocalypse with Zombie Panic! Source: a cooperative, survival-horror first-person-shooter. A fast-paced standalone modification. Choose your team as the Undead or a Survivor. Enjoy their unique abilities, weapons, and challenges in this action-packed mod!

Sound Effects Used

(As Zombie Panic! Source is a modification of Half-Life 2, many sounds are reused, although some other sounds are also sampled.)

Image Gallery

Audio Samples

External Links