Unique base building system
You have to build your base in order to survive the deadly nights of this place. At your disposal are sandbags, barbwire, fences, and tripwire systems - everything to increase your chances to survive.
Day/Night
Time goes by in this place - plan your exploration accordingly to make sure you are at your base when night sets in.
Underground transportation system
Instead of being exposed to the surface threats you can go underground and take a train to reach your destination - but watch out for the creatures that consider the underground to be their home.
