An ax is one of your first armaments, but it is surely not the last one. As you keep yourself alive day after day, better and more effective weapons will be there for you. All the trees in the environment need various types of axes to get cut. You will be able to collect them every time you progress. Since meals play a crucial role in your survival, assure that you always have something to eat. If your character is low on food and you cannot find anything, game over!