The FCS is a powerful "data-only" editor. While it won't let you change the 3D models or physics engine directly, it allows you to manipulate almost every numerical and logic-based value in the game.
"The FCS says my mod is 'Dependency Missing'." Fix: You used a mod (like Living World) as a dependency. You must load the original mod above yours in the launcher order.
In Kenshi FCS, players can expect:
Downloading "free" versions from unofficial sites is risky and unnecessary. The official FCS is regularly updated
You can find the executable file in your local game directory: