Monster path and Tower

Monsters will be summoned at specific locations and will continue moving towards the Seal Crystal.

You can see their path when you open the building mode.

The monster will more likely to move on road, because it will move faster. If you build a tower in the middle of the monsters' path, the monsters go around it.

But if you build too many towers, the monster will go straight and attack the tower.

After build or move tower, make sure that the monster will not attack you tower.