I bought the game during the end of year sale and haven't touched it much since then, but I'm really confused and just lost in general. Just don't know what to do at the start of the game and need some tips on how to get the track rolling. So far all I've done is built a shelter in the side of a hill. Day doesn't last too long and at night tons of zombies come to my door and they take several hits to kill even one. I'm dying too easily and when I look at the crafting table's inventory I barely see anything that looks helpful besides basic building.