If I'm going to give up on a game, it usually happens pretty quickly. Less than half an hour. If I'm over halfway, then I usually plough through.
Same with books and films. There are a few films I've left almost-completely-watched (because I've started them really tired and fallen asleep), and they irritate me until I rewatch them.
Same with books and films. There are a few films I've left almost-completely-watched (because I've started them really tired and fallen asleep), and they irritate me until I rewatch them.