Really like a lot of the implemented ideas, but I'd desperately vote for some kind of preview window, so I can see, what the things in Research or Technology bring me, instead of having to invest the materials and grind back up, if it is something useless ... this kills any kind of strategy and reduces the game to pure trial and error ... :(
 "Defender Idle 2"){kind=icon}
 "Words Warriors"){kind=icon}