Very fun game! I love tower defense / mining stuff / base builder games. I found myself attempting 3 playthroughs, getting further each time but there are a few bugs that prevent to get as far as possible. One being sometimes the kobolds just won't attack an enemy. And another that you can't select a kobold through the next of an ore for example. I died on the 1500 ore level due to these two bugs.
Nice pick of music for the type of game, very fantasy and kobold-y. I love that its only controlled with point and left click, points for simplicity :)