Sentinel 4: Dark Star, developed by Origin8 Technologies, is the fourth installment into their Sentinel franchise. It’s available on Google Play yesterday, priced at $2.99.
For those of players not familiar with the Sentinel franchise, this is a series of tower defense games that are pretty awesome to play. There are two great tower defense franchises available for mobile, there is the Anomaly franchise (which is more tower offense than defense) and then there is the Sentinel franchise. Players have a blending of great gameplay and visuals all meshed into one title. There are a huge campaigns across 26 unique maps, each also playable in Endless mode. Their special abilities and varied behavior will keep even veteran players on their toes.
Players now can have a try this game for free: http://bit.ly/1oUy9vi
And here is the trailer: