Lost in a cube 2

After the destruction of the core, our unknown hero dissapeared

You now take control over Hector
A normal scientist testing a space ship, something goes wrong when some sort of rock hits your ship and there's no other way of escaping but jumping out of it
You happen to be on a weird cave, when you start climbing out, you find out that its not a cave at all, you are on a cube, with doors that have numbers above them, there is no way back, you have to continue...

I hope you enjoy my adventure map

Some of the beta testers are Gusty009 and Hollyleaf or whatever