Now enemies do not attack buildings, but run to a certain point. Build a maze with turrets to effectively destroy them.

The Death Beam Gun was returned and redesigned. Now the more you attack without interruption, the more damage becomes and increases in an exponential degree (for example, 5 seconds - 100 thousand damage, 6 seconds - 1 million damage, etc.). Energy consumption is proportional to damage. Combine it with slow time to deal massive damage through crowds of enemies before running out of energy.