So i found i glitch/bug. I don't think i have enough characters to explain it in this comment (hit me up developer for more details). But i only have to wait 1 minute for the tidal wave and the gold rush to cooldown. I only pressed 2 and 3, while clicking on the game. And then boom, it happened.
Something i think that would add nicely to this game, and making it a bit more interesting, is that you add different planes to the different continents? Or else, it gets too repetitive.
Well, there is one problem i had with this, after the updates. The quest where you have to bring Wilhelm and his men to lagos. You need 15 seats, and then you have to fly to Lagos. Only problem with this, is if you choose to buy the Junker 52, because you haven't unlocked Douglas DC-2, you're pretty much screwed, since you don't have to range to fly to lagos. You can fly from casablanca to Dakar, and if you haven't got a flight certificate, you can't buy such fly rutes. Which makes the progress come to a stop.
For all of you complaining about it not working while going to another tab, here is the solution!
All you have to do is click right beside the game(to the left). The game then looks frozen, but it's still going the image is just frozen. Then you can clearly roam around in all your other tabs, while your miners mine away!
So, at wave 127 i finally upgraded it all to max. You have to do a lot of grinding, even with insane waves. I won't say that you should get more money from the people, that's one's fine. But at least but some more Medals in, so we can have m-AXE-imum upgrade quicker :)
It seems like a great game, but when i start the game it's freezes at the first level.. When i right click, play doesnt have a tick. I dont know if it makes any difference that i'm on Google chrome?