Chocolate

Listen carefully, soldier. You are about to embark on a life or death mission. You will be deployed in hostile terrain. Your objective is to retrieve all the runes scattered among seven shelters. Consumption of chocolate is discouraged. We are unaware of the dangers that lurk. To conclude; Remember soldier, your worst enemy is your own mind.

Nobody is aware of the dangers lurking in Antarctica. Try to be - one of the few - to find the shelters and make it back alive. Feel the horror of being lost.