How to implement a Worms style destructible terrain in XNA?

Question

I want to prototype an idea for a game I have. The idea for this game is that the player will dig through the ground, creating tunnels and finding treasure.

I\'m looking

Answer 1

There's some nice code at the bottom of the this thread. Also, this is a great step-by-step tutorial on achieving a destructible terrain.

EDIT - The original link for the second tutorial was broken, so I've linked to an archived version of it.