Board Thread:Off Topic/@comment-29191679-20161214221805/@comment-24286619-20161231065252

Having somehow avoided the Onslaught that has happened, I decide to create a fortress of Lava, Stone and Fire.

​Welcome to Inferno Castle.

​​The fortress is self-regenerating; After each post if it has been damaged, it forms back together.

This means that you can break down walls to get in, but leave no gaps.

TL,DR: Not inpenetrable.