Robbers and wolves will attack too. And while the game is not really fiction, all of Germany's mystic characters are there - gnomes, witches, demons, giant spiders, hellhounds, cobolds, elves, and even dragons. Weapons you can use are realistic for the time period too. You can find a wide range of swords, pikes, bludgeons, bows, arbalets, and even guns. Weapons have different weight and do different damage.
Weapons also have different quality which affects their price and effectiveness.
The same thing is the case with armor. It ranges from clothes to plate armor. Different armors have different weight and offer different protection. Magic potions and saints are done very realistically too. Also, there's risk involved in the preparation of chemicals.