there are several key differences primarily to do with combat and character creation
1. Different classes get access to different skills - if you want to use magic skills you have to have a mage
2. There is an unarmed skill, and instead of melee weapons being split into light and heavy, you have daggers, swords, axes, and maces (in order of fastest to slowest attack speed). Faster attacking weapons do less base damage in return
3. Missile and throwing weapons are almost indistinguishable from eachother in this game, however you can enchant arrows/crossbow bolts with an element to do bonus damage if you have a mage. Both missile and throwing are 100% accurate, scale damage off of strength (all melee weapons scale with strength as well) and can eventually fire 2 projectiles at once
4. Enemies are interrupted from attacking every time you hit them, so it is possible to chain stun an enemy with well timed strikes
5. Instead of active abilities you have to charge up, weapons have passive skills which have a chance to trigger every time you attack
6. Evasion is very powerful and honestly better than protection
Also there’s obviously different weapons, armor, and gear, and you actually need glass bottles to make potions