After being washed ashore, you are the sole castaway on an uninhabited island.
Naturally, dying is not an option for you.

First things first, make a campsite!
Cut down trees for lumber and excavate minerals.
Forge a blade at your camp, and hunt down wild beasts with it for nourishment.
Create a filter for seawater as soon as possible, lest you perish without drinking water.

Overcome all the tribulations that exist within this harsh Mother Nature.
Become the greatest survivor of all!