[Threshold]

That sounds awesome. I don't understand why so few games are doing this sort of thing. Not only is it a major type of content for players who use the tools, but it is new content for their friends who come and visit. It is a huge win-win. And making people feel like they own a part of the game world is a great way to keep them playing as well.

I keep wondering if WoW actually has a fully realized player housing system coded, and they are just holding it back for the first time a competitor actually presents a legitimate threat to their subscriber base. At that time, they'll drop the housing system and lure a ton of people back - squishing this "promising" competitor.