Great effort, but...
Ive been waiting for this new sentinel release. Sentinel 3 being the benchmark in tower defence, the developers had a lot of pressure to raise the bar even further. As is stands right now, the new game is a miss. Seems that they tried to add so many features that the core principles of the game got convoluted. I hope they will release an update that will remove some of annoying features to get back on the sentinel 3 track.
Sashman777 about
Sentinel 4: Dark Star, v1.1.0