Yeah that's right..
You can hack dragon city habitat gold earning with cheat engine.
2 habitats of each building [for the one you gonna hack]
So lets say you got small earth habitat, build another one [you'll see why later]
Put in the first one 2 dragons,
Ok now open cheat engine set speed hack to 10-20 [recomanded]
and collect your gold from that habitat until error will popup.
Ok in most games what you have done before error popup isn't saveable.
But in this case it will save the gold you earned!
Ok so refresh, press on that habitat that you collected gold from.
You'll see negative number of gold [DONT PRESS ON IT OR YOU LOSE GOLD]
Then you'll be like WTF FUUUUUUUUUUUUU.
Thats when the second habitat coming in,
So transfer your dragon to the second habitat, and PUT IN STORAGE the one with the negative gold number..
Now take it out again ...
And check it out
You should see it rested to 0..!
Earned with this method 150K
Press thanks too
This is useful alot [Dragon City]Habitat Hacks
Should check it out!
[In case you reached your max habitats it should help you