Haunted School - Horror Ghost

Ghost School - Going to school for further education, you suddenly find that it is completely filled with various ghosts and monsters. You did not expect such an outcome of events at all, but apparently this is a new test that you will have to pass, so you challenge what is happening and proceed to a global sweep. Build towers, hide from the oncoming ghosts, develop the economy inside the building, find the surviving players and pass the obstacle with them. Step by step, expand your boundaries, and very soon all mystical phenomena will disappear.