Dwarf Fortress has some wonderful world events and npc choice trees. For example in my biggest fortress, Ragnar was bored. Ragnar got really bored. Ragnar stared at a rock for almost 3 months game time. Then Ragnar got inspired so he ran over to the bowyer workstation, fetched a few gems and wood from the nearby piles, and started crafting a masterpiece crossbow. 6 months later, this thing comes out decked in jewels and gems, it’s got a +++ rating on the end. It’s wonderful. Then Ragnar loads a bolt. Pulls the trigger.