Thread:Project:Support desk/Perhaps someone here can help me figure out how best to do something for my game on mediawiki..../reply

Not really the wiki way to enforce rules in the software. Sounds like you're looking for something more CMS-ey. In particular for the gold exchange thing, you're likely looking at writing a custom extension.

However with that said, you can put all the users character points in sub templates of a page, and then use parser functions to make sure they add up to a correct total. Also, SMW may be useful to you.

However, to really make MediaWiki do what you want, you're really looking at needing a custom extension.