Yeah, we actually do have our "official" game. :D
Njec made it for Windows PC platforms, back in year 2009 for then newly released Popizdunac single. Game was made in old-school Doom 2 style and it is available for free download.
Gameplay footage (with lo-fi audio capturing) is available for watching here:
"Is some other game in developing? Why does it says on link GAME(S) and not GAME - if it is only one game?"
That is a mystery.