NPC behavior in Oblivion was distinctly quirky and spawned a wealth of memes.
The creator behind The Elder Scrolls V: Skyrim, TES IV: Oblivion, and Fallout 3 recently joined the FRVR podcast. Bruce Nesmith discussed Radiant AI, the system that governs NPC behavior in Bethesda’s titles.
Many players remember the humorous character incidents in Oblivion, while Skyrim exhibited fewer such moments — some even remarked that Radiant AI seemed “less present.”
In reality, the system was still active. Nesmith explained that TES V shipped with an updated, more refined version of the technology; this polished iteration produced fewer of the odd, standout scenarios:
“I would argue that Radiant AI’s eccentricities in Oblivion made the NPCs memorable. In Skyrim it ran more smoothly, and because it behaved in a more natural, organic way, Radiant AI was less conspicuous — you didn’t notice it as much — yet it still operated in ways you might never have imagined.”
Bruce Nesmith offered a few examples of Radiant AI in Skyrim:
- Killing an NPC could lead to one of their relatives stepping into the deceased’s role or even completing the quest the NPC was tied to.
- If an item fell to the ground, NPCs might fiercely fight over it; they can also pick it up and ask permission to keep it, or even sell it to a nearby vendor.
Source: iXBT.games