In terms of balancing and a sense of progression, a little achievement system would be good for this game. You could have it so that each achievement provides a small bonus to all your circles. For instance, reaching 50 clicking power could provide a permanent, flat bonus of +1 damage against all circles. Reaching a certain number of specific types of circles could also provide little bonuses to those.
You should definitely give the interface some TLC. Split the staves into two columns and try to lessen how much horizontal space is taken up by the things in the Kingdom screen. You could easily shorten "per second" to just "/ps" for instance. It might not serve a purpose yet, but it's good housekeeping.
Khamael. It has been. The user who uploaded this is a game stealer who gets money from the ads by uploading bunches of games. I don't know why they haven't been banned from the site yet.
 "Click To Win"){kind=icon}
 "Click The Circles"){kind=icon}
 "Progress Fight"){kind=icon}
 "Idle Dice"){kind=icon}
 "Defender Idle"){kind=icon}
 "Squid Ink"){kind=icon}
 "War of Omens"){kind=icon}
 "Impact Point"){kind=icon}
 "Click It! 2"){kind=icon}
 "Realm Revolutions"){kind=icon}
 "Serene Sky"){kind=icon}
Fixed :)