I would definitely recommend Zelda: Breath of the Wild. It's more of an open-world exploring type game, but you can find new armor and venture into new areas of land; its not very similar to Final Fantasy, but there are a few similarities. You can only play as one character, but in order to successfully complete the missions, instead of levelling up your character, you find new armor and upgrade your armor. You can also find a variety of weapons, using each new find to defeat harder bosses and monsters, which in turn, gives you the ability to find more rare, special weapons. It's definitely a great game, and it always presents new challenges!