Incomplete Roguelike game written in Ruby

I've been working on writing a roguelike game in ruby, without using any external libraries.

It's not really a complete game at this stage, all you can do is travel through the randomly generated mazes once you hit the stairs.

I thought I would share as I have been struggling for time to do further features.

Any feedback is appreciated, feel free to have a look around and contribute if you so wish.