PAL
es de Pathfinder: Kingmaker
Two-Weapon Fighting
Prerequisites:
Dexterity: 15
Reduces the penalties for wielding an off-hand weapon to -4 / -4 (-2 / -2 if the off-hand weapon is light).
Improved Two-Weapon Fighting
Prerequisites:
Dexterity: 17
Two-Weapon Fighting
Base Attack Bonus: 6
You gain a second attack with the off-hand weapon at a -5 penalty.
Greater Two-Weapon Fighting
Prerequisites:
Dexterity: 19
Improved Two-Weapon Fighting
Base Attack Bonus: 11
You gain a third attack with the off-hand weapon at a -10 penalty.
Double Slice
Prerequisites:
Dexterity: 15
Two-Weapon Fighting
Apply your whole Strength bonus to damage rolls made with your off-hand weapon (rather than just half).