Considering the following two URLs have the same content, but in different languages:

dragoneternity .com/game/clan .php?title=Elitists
de .dragoneternity .com/game/clan .php?title=Elitists

This, and much/all of your sites, is a good candidate for using link rel="alternate" in your page head.

support .google .com/webmasters/answer/189077

I know you probably have *tons* on your plate, but at least consider this for your long-term, neverending to-do list ">