In level 1, you must try to avoid the poachers or run away. If you fail to do this, you lose one HP and if you lose all 3, you lose the game and die. Red is health, Green is hunger, and Blue is thirst.
After a while in level 1, more poachers appear slowly
Now in level 2, there will be animals competing with food. You must avoid them while picking up small animals such as hares to raise up your Hunger. To get thirst, quickly drink the water while avoiding the other animals. If you wait too long to get food, the small food will get eaten by the bears and wolves.
After a while in level 2, you must keep your needs up (Hunger, Thirst, HP).
In level 3, there is now scarce food. You must try to find the quickest way to your new safe habitat and to stay safe at the same time.
After a long time in Level 3, you finally reach your new habitat safe and sound.