Originally I was contacted by an individual named Paul Roberts that wanted to help me get the game localized. I was curious to see how the process would work, and ultimately through him I was introduced to a company called "Lokilize" based in Estonia. They were very professional, and I would work with them again (although their website/focus seems to have changed since I worked with them).
The reason I decided on a German version was because, at the time, that was the language I'd seen most requested. Currently I have no plans for future localizations of the original or second game unless there's a surge of interest in non-English versions, or unless I eventually make a connection that can help me promote the game to a non-English audience.