The Collapsing Caves mod adds natural cave-in events when mining in Minecraft!

The purpose of this mod is to add a little more danger to caving, and who doesn't love a little bit of random world events to spice things up?

The cave-ins DO NOT effect player-placed blocks, so you can protect yourself by building fast enough.
I don't recommend trying to run.

There are five types of cave-ins: Small, Medium, Large, Enormous and Gargantuan.
These types dictate how many block layers a cave in effects, how wide the radius is and how long it will last.