@Flaxicon: If you would have reviewed the options, you would have found an option to upgrade per 10 and even to upgrade to the maximum of your financial capabilities.
For the next game, first order predicate logic? =D
And for everybody that likes learning the far depths of mathematical logic by fun puzzles: Look into the author Raymond Smullyan.
Well, this is quite disappointing. Way uninspired and many times easier than earlier games, this game just seems to be a desperate attempt to milk some more out of the concept. Also, the levels were extremely repetitive, the level of difficulty actually went down sometimes and except for the Angry Bird level, you did not need to utilize inventive workarounds. To end on a positive note, love to be able to click tools! =D 2/5
In the third stage, I missed one country to the far right of the screen since I windowed my browser (I was watching a tv show on the side). This lead to me missing to conquer it at the end of the game, so I needed an extra turn to do that. I finished in 26 turns, where 25 turns would have gotten me the gold medal. RAAAGGGEEE!
 "Pawnbarian"){kind=icon}
 "Jelly Lift"){kind=icon}
 "Creeper World: User Space"){kind=icon}
 "Steppin' Stones"){kind=icon}
 "Arkandian Crusade"){kind=icon}
 "Cloud Wars"){kind=icon}
 "Trollface Launch"){kind=icon}
 "Sky Garden"){kind=icon}
 "ir/rational Redux"){kind=icon}
 "DuckLife2: World Champion"){kind=icon}
 "fabric"){kind=icon}
 "Infectonator : World Dominator"){kind=icon}
 "Factory Balls 4"){kind=icon}
 "WarLight"){kind=icon}
 "Rubble Trouble New York"){kind=icon}
 "Tree Of Life"){kind=icon}
 "Help the Hero"){kind=icon}
 "Wasted Youth, Part 1"){kind=icon}
 "The Last Survivor"){kind=icon}
 "Skinny"){kind=icon}
I think predicate may be pushing the fun / hard work balance the wrong way ;-)