Tower Defense Strategy

I really want a game guide, but it looks good. Shrunk version: A certain person from the future beats little monsters with a group of sand sculpture players at a staggered time. ...- Traditional introduction: Someone who was playing an ancient game suddenly discovered that the accelerator key was missing. Slowly I discovered that there was something wrong with the sand sculptures around me, and then I realized that the game had undergone unknown changes in time and space. At the same time, the world where players in another time and space are located is being invaded by unknown creatures from another world. Maybe the game information can be used as a reference?