1.) I can't think of any. I'll edit this post if I do.
2.) The Elder Scrolls IV: Oblivion
Radiant AI was the flagship feature of Oblivion. While many say that Oblivion was groundbreaking in its visual beauty, and it was, the AI was supposed to be the big selling point. NPCs that would have their own daily schedules, including work, play, errands, relationships, and spreading gossip. An NPC would be able to wake up and 'choose' how to spend their day off work, whether it's practicing with the bow and arrow or going to buy some fresh meat for their pet dog. NPCs would pursue their own 'mini quests' to solve problems in their daily schedule. For example, in order to go shopping, the NPC needs money. In order to get money, they have to sell something. Some NPcs might resort to thievery from other NPCs, or sell some of their belongings or profession products. For example, a fletcher by trade would sell some arrows he made himself. Or, instead of getting money to buy food, they may instead just steal the food or go forage/hunt for it directly.
Early versions of the AI actually ended up capable of many of these feats, but as soon as Bethesda started running it, they quickly found that while the NPCs were much 'smarter', they were also a lot stupider. NPCs would indeed go about their daily duties as seen in the final product, with the added ability to follow their own greed or find alternate methods of getting food or money. However, it was documented in multiple test runs that the NPCs would kill each other over the same bread roll, or would get themselves killed in some other fashion, or completely abandon their intended roles in the game in pursuit of something they wanted. This resulted in broken quests, abandoned cities, crowds of NPCs chasing a deer across the country, and all other manner of hilarity.
Without the time or resources to fix these problems inherent in the Radiant AI, Bethesda opted to scale it back severely, and what we saw in the final product is a result of that. While Radiant AI did make it to the product, it was not the stuff of legends that previews and developer blogs lead us to expect... because it was game breakingly 'intelligent'.
Oblivion also suffered from more obvious issues, like a lack of content compared to Morrowind. Many factions were omitted completely or made unplayable, the switch to use voiced acting lead to only a tiny fraction of dialogue compared to its predecessors, and mounted combat was completely missing from the game. DLC appeared later which caused a furor from the community as well, leading some to suggest that the DLC was simply content that was finished late and sold at a premium price.
P.S. - I thought about choosing Freelancer for #2, but I really think Oblivion came far far closer to what it could have been, and a lot of people don't realize it. Freelancer was an obvious step back from the design goals. Oblivion? Not so much.