Features:

1 Fight against the world - Your life is never safe in Rust. Cold weather, hunger, and even radiation are environmental factors that can kill you. Bears and wolves stalk among the trees and will attack you without fear. 

2 A rock, a torch, and a dream - When you start playing Rust all you have is a rock and a torch. Knockdown some trees, build a fire and survive one night. Then you'll have to find food, make tools, and find shelter. 

3 Build alone or together - Rust gives you complete freedom to decide the best way to stay alive. You can be a lone wolf (no pun intended) and make a private stronghold hidden in the trees. 

It's tough to survive in Rust. There aren't zombies or mutants hiding in the trees, just bears. You won't get killed by terrorists or acid rain. But other players might come after you, or you might just starve to death.