Elder Scrolls V: Skyrim's 'Radiant' system, which changes NPC's roles in the world depending on your choices during quests, recently offered up an unexpected twist for game director Todd Howard.
It revolved around one of the game's new concepts, infidelity, he told our pals at PC Gamer.
"I had decided to marry this one woman who was my friend. I forgot that I had done this Radiant quest for this other guy, who turns out he had liked her.
"When you get married, you can decide where you live - if you own a house, your spouse can move in with you, or you can move in with them," he explained.
"So I had owned a house in the city of Whiterun, and asked her, 'OK we should live there.' I went there, and she hadn't arrived yet, so I decided to wait - I slept.
"Then she showed up, and I turned around and she was standing there, I saw another door open to another bedroom and the other guy walked out! If you make him like her, he then visits her every day, and doesn't care if she's married. It's my wedding night, guy walks out of the bedroom!"
Howard also told PC Gamer Skyrim's progression system is closer to the recent Fallout 3 series of titles than Oblivion.