Great game you'll never play again

What are some awesome games that you'll likely play only once? (At least 100%.)
Whether the nature of the game makes it pointless to replay or it was such an effort, in length or difficulty.

In Ridge Racer Type 4 it took me years grinding to unlock all cars. So much of that is pointless grinding that I'm not doing it again.
But that is a game I do play in some lesser form now and then.

There are other driving games - Xpand Rally, RalliSport Challenge - of which can be said the same.

Betrayal at Krondor is a classic, but I'm not sure I'd consider it particularly great game. It has remarkable qualities, but it was so rough that that's never happening again.

There are many other RPGs that I likely never get into again. Dragon Quest 6 and Final Fantasy 3 (the actual 3, not the SNes 6 called 3 in the west) are probable candidates.


I generally think about all good games that I want to play it again some day. It's the 50+ hours long ones that are tough call to start again when I have so many new things to play.

There were some hard games that I can't even remember the names of that I won't be playing again. If there is too much violence and gore, I'm just not into that, so those are ones that I don't return to. Sometimes if I'm at my relative's I'll play without knowing what they want to play.

This is a tough one for me... I would have to say Final Fantasy 15. It was a great game don't get me wrong. But just doing all the side missions before I even got to the story itself was tiring and rewarding all the same. But the grind to do it. Kinda turned me away from playing it again.