which was the longest RPG you ever played?

[Nkh3]

Defenatelly Pokemon Leaf Grean.I remember that I've finished this game at least 5 times with at least 100-200 hours put into each playthrough.But except for pokemon.....I've played Dark Souls more than 250-300 hours.Also I've finished Kingdom Hearts 1 five times plus a lot of unfinished playthroughs.