This game will test your ability to strategize. The gameplay is simple but complex in a way where puzzles are needed to be solved in order to progress the game.
The good thing about this game is the free 20 levels that you can play, and you will have to pay to proceed further. The free levels are already worth it, and it is also worth it to pay for the other levels.
Overall, the game is great, gameplay and playability are there. Greatly recommended.