5. Xenogears
Above every iteration of Final Fantasy however is Xenogears; a fantasy based adventure filled with more lore and complexity than all the Final Fantasy games combined. Xenogears isn't just a fantasy adventure where you tackle a world threatening villain with your typical tropes, but rather a story heavily crafted around organized Religion, reincarnation, and war. There's also a crazy twist where you find out that a primary villain is actually just your split personality which blew my mind. It's hard to totally put Xenogears into words due to its immense scope but it's easily one of the most intelligent games ever made and still relevant today.