For those of you who don't know about it, U5:L is a remake of the classic Origin game, Ultima 5: Warriors of Destiny, using the (somewhat more) modern Dungeon Siege engine. It's completely free, all you need is a copy of Dungeon Siege to play it. (It's essentially a massive mod.)
Technically, it's been out for a while, but the earlier releases were plagued with bugs and had incomplete content (making me wonder why they called them final releases...). Supposedly, 1.20 is supposed to have all of the content and has squashed all (or at least the vast majority) of the bugs.