Ultima Underworld 1 and 2. These are ancient RPG games going right back to the dawn of PC gaming. The first one was the first PC game with a true 3D world where you could look up and down and there were two slopes rather than just steps. The control scheme takes a little getting used to as it was before WSAD+mouse look had become established. Spells are made by combining runes which you find about the place. It also has things like repairable weapons and armour, the need to sleep and eat as well as the normal RPG stats and levels.