It does/not surprise me that things like the Minecraft multiplayer mod hack worlds actually succeed. Does because the entire UX of Minecraft itself sucks and then the mods are 10x worse; Does because the extensions they add to the game are broken bad hacks with no clue about multiuser distributed asynchronous concurrent race condition type behaviour: I sent a party invite, and the recipient gets it and types the command to accept and their server tells them there's no such invite?! And when I try to re-send the invite it says either that I can't invite that player (with no real reason why so I could have a hope of figuring out how to do whatever I need to do to get it to ever work), or that I've already invited them, etc. All in all complete standard epic utter failure of the feature in just about every possible way.

(Does not because I guess Minecraft is sufficiently addicting that if the poorly designed, poorly implemented features work I dunno 51% of the time then that's Good Enough. It ain't like anybody is, you know, paying real money for this stuff.)