You need make pencil from charcoal, charcoal comes from fireplace, then you use ? mark some items have, to open new recipes. Good game kinda realistic crafting system (as games go), but game start just no go. You start game, start freezing, injured, almost naked, freeze to death at first day, because rain is pouring and then it's snowy and next day and so on, oh you didn't get spear and now zombies ripping you apart to make things complete. If game author balance start and some other rough edges, it could be good game. It's still has potential, but first day of struggle where RND constantly fuck you over, while you try figure out how things work, becomes pretty stale and not fun, pretty fast. So far, God mode strongly advised, unless you really know how things work and what to do. So far like the game, but you must know it's inner workings very well to see how good it could be.