Not impossible...
I've won on nooblet. basically I terraformed my planet to be mineral-rich, and built a LOT of mines, like over 10. I also built 4 obliterator towers. Then, instead of sending waves manually, I just let the game sit for an hour or so while I did other things, building the city every once in a while until I hit population 25,000.
The point? It wasn't fun, at all, not in the least. It's difficult, but not in the fun way, in the stupid way. And here's the thing: When the game was first released? It was even more impossible. You would run out of power randomly when your guns weren't even firing, your city would auto upgrade, and food consumption was based on your city size and not population. Farms got impossibly expensive too.
Now, he 'fixed' all of those issues, creating just as many problems as he solved. Now, your city doesn't auto upgrade, and it's super expensive to do so at later levels (in that it takes about 15 minutes of waiting for your mines to farm up the money), and power is incredibly scarce no matter how many plants you have.
Very similar flaws exist in his Swords and Sandals games. It's almost as if the author didn't play the games himself and test them before throwing them out to the dogs. My advice? TEST YOUR GAMES. Have your friends also test your games before you release them to the public. Many of your games are incredibly flawed in terms of difficulty because of some very obvious things. When you patch "get off my planet" to a new version, I want you to try beating it on all three difficulty levels BEFORE you upload it. Otherwise, you're not going to get ANYWHERE as a game developer.
