this is really fun game and even though it is a bit of a cash grab I like how gems were integrated into the game as a hard to earn currency but still easily obtainable if you really tried I think to improve the game you should have some more daily challenges of varying diffuculty that adjust for the player like one challenge is difeating a boss but that only appears if you are close to the first boss as later on you could easily defeat that boss and too early you couldn't defeart the boss
 "Idle Monster Frontier"){kind=icon}