Talking with a friend & colleague at work, I heard about
Weblate. It seems to be an open-source software allowing multiple users to achieve a multi-language translation. I don't technically knows it, but as far as I understand it, i guess it would be possible for Arcen to use it (alongside mantis, forum and wiki) for fan-made translation of their games. I remember of some discontinued efforts for a French port "mod" of AI War. I would happily contribute to it myself, and I feel there is a community willingness to do so, but refrained by the lack of official and technical Arcen's support. I'm not criticizing, though: I understand such burden is far beyond the expected gain for a
small not-AAA studio as Arcen. All I hope is that Weblate (or any sort of similar technical support for translation) would allow Arcen to allow its community to provide translations for its games.
So, Arcen. Sounds feasible?