I have been shoulder-deep in wiki design, setup and wikifu recently for the LARP I'm involved in.
Is there something particular that you are looking to do? I'm not really capable of, say, making a wiki work with a MUSH (I do not know enough SQL or the processes for that, even with various tutorials and theno's guides and such), but wiki setup, extensions, options and design I've gotten pretty good at. If you want, PM me or post 'em here.
I'm surviverpg on Origin. ( I checked before I posted this time!)
Pretty much the only thing I have that's multiplayer is Dragon Age Inquisition, I think.
Most everything else has been free stuff that's bee given away.