I've created the Translations page to gather links to content that has been translated into other languages. Right now I've only added a Spanish section for games, as I've noticed an effort to translate many games has started at the Spanish Boardgame related site labsk and I myself want to at least translate my own games.
As it is explained on the page, it's easy to create sections for other languages, so if anyone is translating games, be sure to add them to the wiki too, and to that page. Of course, feel free to ask any questions (here on the forum or by private message).
Edit: I've renamed the section to Pages in other languages because it should also include original content created in languages other than English. There is already one example of such a game: Revelacion