In Green Hell you play as an unfortunate man left for dead in the Amazon Jungle. At the beginning, he only has a radio, through which he can talk to his girlfriend, and he has to learn the art of survival in order not to die a horrible death.
Your main task is to gather food and water for the protagonist, or else he won't live long. You also need to learn how to light bonfires, fish, and hunt, as well as use various resources to craft items (including weapons) and traps, and also build shelters. You can also try farming—everything that increases your chances of survival is good.
However, even the most skilled survivalist wouldn't get through such an adventure unscathed, and so the protagonist sometimes gets wounded (e.g. when fighting predators), falls ill, or catches parasites. Such situations affect his mental state, and can even lead to madness. Thus, it is smart to keep an eye on his mental and physical well-being and use the body inspection mode as often as you can—the mode allows you to diagnose the problems and get rid of them.
System : Windows 7
Processor: i5 2,5 Ghz
Memory: 8 GB RAM
Graphics: GTX 560
Disk space: 3 GB