Wetrix (1998)

A rainstorm so fierce, it will keep you from leaving your home for the next six months. Using randomly shaped 3D blocks as they fall from the sky, you must create a series of lakes and dams before the heavy rains appear. Because if the water drains, you lose! Sound simple? Well, mix in a few natural disasters and bomb attacks, and suddenly you need to muster all your strategy and skill to combat nature's fury!