The badge does not always display to the right of the game... this seems to be one of them. After you finish, go back to the daily badge screen and you'll see the check mark.
This game is a great concept. Good luck in the continued development of it.
 "Words Warriors"){kind=icon}
 "Zomgies 2"){kind=icon}
 "Top Defense"){kind=icon}
 "Surgeon Simulator 2013"){kind=icon}