I know this isn't the same, but if you really want to get some Haven & Hearth fix, this game is very similar and you can host it yourself and everything, so you could play it alone, with friends, etc even without Internet access.
http://www.byond.com/games/GauHelldrago ... RemasteredI used to play Archipelago way back in the day before finding H&H and it was always fun, though the things it's lacking make it rather boring: No randomly generated maps. Lack of good number of creatures. It's also a good bit easier than H&H, but you could still play for a week straight with your friends and find stuff to occupy yourselves the whole time.
Byond also has a whole slew of other games you could try out instead and maybe you'll find something to keep you and your friends from going crazy.