After 2 playthroughs, first as Kassandra and NG+ as Alexios, and having played all of the DLCs, I have gotten all the achievements in AC Odyssey. I love this game and probably not for the reasons Assassin's Creed became popular. The world feels so loved in, the combat and skill system is awesome, and the mercenary system is such a nice addition. Oh and don't get me started with the naval system, there's such a big world to traverse in your boat and the naval combat feels like nothing else I've played.