Nups, even the turtles died too quickly, considering how slow they are. No combination of units worked for me. I tried different compositions and everything just died to the towers constantly. 1/5. Unplayable.
I wanted to enjoy this, but it seems that if I use anything except turtle, the enemy makes a bunch of towers and then I lose. I can see that I get money per tile walked on, but then the enemy gets heaps of towers if my units die then I get overwhelmed.
I thought I would have to use cheap units to get money and move into larger units to get past the towers, but that kind of strategy is a death sentence. So it appears the only way to play is to make endless turtles.
Not a bad premise, but the game is just simply unbalanced.