Combat Extended completely overhauls combat. It adds completely new shooting and melee mechanics, an inventory system and rebalances the health system. Requires a new save, and cannot be removed from existing saves.
*Toggleable in options menu
New melee system:
Body part rebalance:
Due to the extensive changes to the combat and inventory system introduced by Combat Extended, mods that add weapons, animals, turrets, new pawn types (such as aliens, robots, or new factions), and similar content require a patch to allow them to function alongside Combat Extended. Mods that do not fall within this category usually work just fine without any additional steps.
A full list of mods with integrated compatibility patches can be found here
Other mods may have separate compatibility patches. These will often be marked with the following badge:
This mod requires all of the following other mods: