Well, since everybody else is writing out their ideas, I figure I might as well join in.

Basically, you are in a freezing, arctic environment with only your crashed >insert-air-vehicle< for shelter. In order to progress, you must venture out into the frigid environment to gather scrap metal, food, and other resources. However, you must be quick in doing so, as the temperature is so cold that you can’t survive for more than ten seconds outside at a time.

You will use your scrap metal and other resources to create portable shelters that you can set up outside to have more safe places to return to, allowing you to explore further into the wilderness. Be wary of your surroundings, though, as you may find yourself being stalked by a mythical creature that is rumored to attack any who enter its territory.