...Did you even look at the steam page?
Wiki: This, maybe?
Commercial License: 70$
Limitations on classes: Turn based battle system is incomplete
Battle system: Incomplete
Is there an add on plug-in scritping/apk: Coming in an upcoming version October 7th-October11th
Pictures/Videos: coming in 1.5
Your other questions, I haven't found them yet, can't make fun of. I found these in probably 5 minutes.