Very good tower defense game
I'm usually not one for TD games but I've had good luck with THE-EXPs games before so I gave it a shot. I liked the oil as currency dynamic, all the upgrades, and the 'pieces of eight' achievements. The on-screen tutorial was helpful when getting started. I liked being informed of new enemies about to spawn, but didn't like being told what their weaknesses were, that should be kept as part of the gameplay element. Other than that a solid TD game.