Asdrubal

I see, I would argue that buying earlier should give more gold overall, since if you go straight elements 1, 2 and 3 you will take a lot of damage and have a hard time killing elementals 2 and 3 with your low lvl towers. Anyway, is good to know for sure. Right now I am trying to beat insane, rush, chaos, random and I am being totally trashed, ahahhahaa. The moment a wave with a shield or resurrection pops up I am done for, because I can't seem to make a set up that can keep killing them fast enough.

So true, great map, having fun testing a lot of things, thanks a lot ^^. I have one doubt though, how does the extra gold from buying pure essence work? It says it depends on the wave and difficulty, but how so? Does buying one earlier give more extra gold than buying latter, or is it the other way around?