So Borderlands counts, I suppose. Also, where would RPG Maker stand?
Since I remember leaving off at 14...here's the rest of my nominations for now.
15. Borderlands
16. Chrono Trigger
17. Fate: Undiscovered Realms
18. Dragon Warrior 3
19. Kingdom Hearts
20. Star Wars: Knights of the Old Republic
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Golden Sun isn't half-bad, but it needs to cut the crap with the Yes/No questions, which make Zubats look like thylacines in comparison.