Each survivor has 5 skills that can naturally increase up to level 10 as the survivor gains experience using it. Equipment and perks can raise skills above level 10.
Leading
Used when recruiting new survivors from buildings, and leading to increase [[happiness].
Defense
Used when killing zombies, guarding buildings, and determining mission danger.
Scavenging
Used for scavenging from buildings.
Building
Used during reclaim and build missions.
Engineering
Used during research missions.