Survival Maze

This game has rather simple graphics and based on Robinsonade idea. The main character is trapped in labyrinth which he must to find an exit from. He needs to find, to create, to use or to break objects in order to get closer to his target. It will not be easy taking into account limited resources and necessity to eat. If the main character dies, you would need to start the game again, however initial conditions will randomly vary. You should not hurry, since time goes only when the main character is moving, therefore use it to prepare the best possible plan.

Episode 1. In a dream (training). Harry (the main player) is sleeping and walking on a flat ground in a labyrinth, he needs to collect materials, make a pick and break his way out of the labyrinth. At the same time he only eats apples that lie on the ground.
Episode 2. Awakening. Harry wakes up, but he is still delirious, wolves attack him, the land is already three-dimensional and he should already eat, drink, sleep, and watch for fatigue. He again looks for a way out of the maze, but now it's harder.
Episode 3. In reality. [in development] Harry finally wakes up after the accident in which he got on his truck. He loses memory, but Lily's girlfriend sends him by radio to the lab where they used to live. He sees that something is wrong with nature, the land is deserted and the trees are infected with some kind of virus, it's difficult to breathe on the surface and sand more and more penetrates into the abandoned mountainous terrain where they are. What happened and how to restore the balance of oxygen on the surface?