for me , KoTor and FFVII , 2 mythic games rpg that set what can expect now in next gen rpgs on any open worlds.
FFVII , mostly the first one to let player know can do plenty activity , exploration , success on a rpg
Kotor , mostly the first one to let player know npc 're not just ramdom peon , but real character we can romance , friendship , story telling
playing again Kotor , graphics is very outdated but steel stunned how at that time this rpg let player build our hown story/character path like