The game is fun but need a lot of work. First the arena is ridiculously hard. All my raiders are 130+ lvl with all the best items for them and with 5k life and the creatures in Round 2 kills me for seconds.... The Drop is like useless and you're paying 5k gold for that... Useless
Other than that you need to add more farm locations and 100% you need to add idle element, like when you're offline.
 "Idle Raiders"){kind=icon}