Topics

Instead of just a Blight that wipes out all crops, Blight II would first wipe out all crops, and would prevent new crops to be planted or to grow until a research project (a cure for the blight) would be completed.

Came up with this in one of more desperate defense battles. And it should be relatively easy to implement.
Claymore / Shaped Charge = Modified blasting charge that has a conical or semi circle blast radius.
Could be used in difficult/precision mining or line up your sandbags with these and blast your advancing enemies to splinters.