The reason you've seen those resources before but don't know where they're from is that lots of people (including, apparently, the author of this game) don't abide by his terms of use, which state that one must mention the site in a visible place such as the game's readme file.
Does the game now have or will it ever have in the future, an character that uses their bare hands to battle, you know like the "Monk" class from the old Final Fantasy games? lol