You have two ways to improve weapons: One is at weaponsmiths, where you exchange ingots to upgrade your gear’s overall quality. The other is through your inventory menu, where you can use various collectible resources to boost your gear’s stats. Each time you upgrade an item at a smith it unlocks more upgrade opportunities from the inventory menu, so don’t forget to take advantage of both upgrade routes when you find gear you really love. Also, when you upgrade your inventory at a smith you unlock the chance to equip runes, which offer additional boosts to your stealth, attacks, health, etc.
