For completion of this hard challenge you will need:

• A working computer (I assume you have that).
  
• A mouse (Keyboard not needed).
  
• Strong mentality (You'll have to endure a lot).

Now, we move on onto the actual challenge.
First, open steam and go to library. Find Deadlock and rightclick on it with your mouse. This should show you options, choose "Manage". Then our clear goal will appear, uninstall button.

For comparison:

Simply click it, and after a while you'll hopefully find yourself outside.

Hope ya like this guide. If yes, pray give it 5 stars.
Cheerio!