10 Great Video Games You'll Never Play Again (And Why) - Commenter Edition
2. Undertale
Now, you might have taken one look at this and thought, "Josh, Undertale is massively replayable, you idiot. After all, there's at least three different runs and endings you can get, so it's unlikely you'll only play it once", and while all of that is true, all of those runs are in service of the game's final and most resonant point: that you shouldn't keep playing Undertale over and over again.
This great video by Hbomberguy goes into it in far more depth, but essentially every single time you try to squeeze the game for more content and think outside the box for different runs, the characters will literally ask, "don't you have anything better to do?"
You might think that's just a little fourth-wall breaking joke, but it also fits with the main endings. The good ending sees all of the characters freed from their underworld, the player escorted from the game, and a permanent "The End" screen that can only be removed by closing and booting up the game again from scratch. Then you'll be asked if you want to play again, which essentially dooms the characters by resetting them in the process.
Undertale champions the idea of loving a game but ultimately moving on, and after that realisation, it's difficult to ever go back.