That's it? – Sentinel: Mars Defense Review

The core gameplay of this game is decent. Nothing special, and doesn't really require much strategy once you figure out what to do. The critical flaw of this game is that it is so short. There are only four levels, and since the gameplay isn't deep enough to allow the player to come up with imaginative solutions, there's really no point to replaying a level, as you'll essentially be implementing the same setup each time. I did everything there was to do in this game in about 3-4 hours. Not exactly a good investment, considering other TD games like The Creeps and Plants vs Zombies offer enough stages and gameplay options to keep the player interested for hundreds of hours. I almost thought that I had gotten a demo of a full game, then I realized this was the full game. How disappointing.
Review by ManWithNoName81 on Sentinel: Mars Defense.