Zombie Panic! Source is a standalone cooperative, survival-horror, first-person-shooter! 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.
While unarmed, Survivors can now brawl with Zombies using their fists. However, fists deal an extremely low amount of damage and is only intended for last resort purposes.
Survivors also now have new shove animations when pushing physics props. This will be helpful in indicating to Survivors if they're actually moving something.