Fun game 4/5 because it needs more levels. Would be extremely fun if there was a larger variety in the cubes. This game has great potential, it just needs a few updates.
I dont think they will ever make a TDP5, The darkness project has been perfected. The only difference TDP5 would have would be faster money and exp which could just be an update on TDP4. RATE+
Instead of getting only 1 exp for every kill unless they are a higher level than you, you should get a certain amount of exp depending on that level. Rate +