[@KoL]
Much like the blood type puzzles, I haven't confirmed whether I'll be using something like that yet with language. I've got a large number of possible mysteries I can go with for the story, and a lot of the puzzles or mysteries do involve communicating with NPCs and such if I go with my current ideas, but I'm pretty much planning to work out the sort of puzzles I want after I have more time to finish the setting and I've got a better gauge of the characters people're bringing over.

I might end up adding the languages though, because I haven't decided on the writing/reading barrier yet actually. It's another one of those 'still deciding' thoughts that I'm settling on since I really only put this project together in the last few days. Known languages is a useful piece of information to include though, with more potential applications than blood type technically, so I'll look into it. Likely going to work it into the CS format once I've rested.

Heading off to sleep now, since I'm well beyond when I wanted to call it a night.

First Edit: I'm awake now -- got a few things to take care of. 

Second edit: Posting the next big update here is now my priority. Also, I might be adding a category involving known languages in the 'Public CS', but we'll see.