Amazing game!
This has to be one of the best examples of the 'idle game' genre that there is!
The game play itself is simplistic but engaging enough to have you returning time and time again. Unlike others it is not frustrating waiting for level ups or gathering resources as there are micro elements to complete while playing.
A great tutorial system and rewards give this game great longevity and even after losing my first lot of game data I was more than happy to play from the start and undo some mistakes made the first time round.