Ultima III: Exodus (1983, Origin Systems, Richard Garriott) is where Ultima really finds its party-RPG stride, letting you create and manage a team of four characters with distinct classes and stats as you explore towns, overworld, and dungeons, fight turn-based battles, and gather the tools needed to stop a world-threatening villain. It’s tougher and more methodical than the first two, but the broader scope and party tactics make it a key stepping stone to the deeper, more story-driven Ultimas that followed.