15 Video Games You'll Play For The Rest Of Your Life
6. Elder Scrolls V: Skyrim

Like the Witcher 3, Skyrim is a staggeringly massive game, featuring hundreds of quests to occupy your every waking hour. It's also potentially endless, seeing as how the game generates an endless stream of new quests after the guild storylines have been completed. Granted, these quests usually just involve running errands, taking out random targets for the Dark Brotherhood, ransacking properties for the Thieves Guild, or just delivering messages and retrieving items.
It's busy work, but it'll keep you occupied forever, potentially at least, running around sorting out everyone else's messes for them. The game doesn't choose locations at random either, it's designed to send you to places you haven't already explored, so you're constantly discovering places you never even new existed.