Perfect Dark Zero is GOOD

[Smoke]

There's not going to be a "you vs the environment" survival story short of the environment being wild beasts.

That's actually a good idea. It could be a Robinson Crusoe style game where you've been shipwrecked on an island. You'd have to build a fire at night to keep the predators at bay. Cut down trees and build a shelter. Hunt for food with a knife or a sharpened stick and perhaps eventually a handmade bow and arrows. As the game went on you would explore deeper into the jungle. Maybe find an abondoned ancient city with better weapons. Finally you'd discover you're not alone on the island but the natives aren't friendly. They're cannibals. The ultimate goal would be sneaking into their village and stealing one of their boats to escape the island.