How to Survive [Online Game Code] Choose one of the three playable characters, each with different characteristics and skill trees. Explore four islands filled with unique flora and fauna and a variety of abhorrent monstrosities. Collect 'Survival guide' video chapters to learn tips that will save your life! Play with a friend offline through the story mode or go online and play with a friend through 8 demanding challenges. Try the 'Iron Man' difficulty for a demanding hardcore game experience.