So, the deal is that you are limmited by the space you have. All you know is that you are in a underground bunker and that you take damage as soon as you get too far away from the light.

The good thing: you are a engineer! You can build light sources! The bad thing: energy and resources are limited by your environment. Use them wisely!

Image: http://puu.sh/vsbQS/b791325f68.png