Was Vantage mentioned?
Tried it for about 15 minutes. I'd hardly call that a survival sim. Can't take two steps without stumbling over bananas and coconuts to eat. Bears just sit there and let you walk up and spear them, paying no attention to you. Good thing I guess, since I can't walk far without finding dozens of bears all over the place - if they were aggressive you wouldn't survive long. Fish are the same - just sit there while you swim up and spear them.
Basically all survival requires is to walk around drag bananas to inventory, right click, eat. Repeat. The most advanced tasks are only ways to get better food that last longer, like cooked meat or fish - and the task of building fire serves only to cook food or slow health loss at night. The day/night cycle is ridiculously fast too - it became night, and by the time I finished making a fire it was day time. Then I walked a bit, ate a banana, and speared a fish and hey its night again.
The premise is great, but the game is severely lacking.
Too bad too, I'd love a more developed survival game like that. A game like this with different animals (as in, more than just bears and fish); FPS style combat with an injury system and the animals either fighting back or fleeing; a sane day/night cycle; and a more realistic food/hunger system could be a lot of fun. Throw in some sort of endgame content (village building or something) and you could have a real gem.