Ok so this game has a nice concept but has nothing to keep you going. Including a prestige function when there is no more gameplay past 5 minutes is not a main focus. This seems like it was not finished and rushed out. Put some reason for us to prestige (doubling income means nothing if income stagnates). 2/5, with a little work could be better
 "Defender Idle"){kind=icon}
 "Aground"){kind=icon}
 "Mining Co. Tycoon"){kind=icon}