After Dark - Pre-Alpha 0.01 is now in the experimental build. Zombies have basic charecteristics, such as smell, hearing and sight. Of course, for testing purposes, there is only one generic zombie, but in Alpha 0.02 - 0.03 this is bound to change. Shadows are in real-time, something Unity users have struggled with when using Unity 4.2, and multiplayer has been added (Although it is only LAN based).
After Dark - Pre-Alpha 0.01