TedStixon

Answer: The Game shows Child's frozen body where we last saw him in the movie (Whether he is a thing lying dormant or not, we never find out) There is a comic book series that continues where the movie left off, where MacCready and child's are rescued by another research team on a ship. And it is discovered that Childs was in fact a Thing, spawning a whole new generation of things among the team.

Answer: No one knows what happened. They had no transport and couldn't make radio contact, so very likely they froze to death. If one or both are Things, then they just went dormant until rescue shows up. There is nothing in the game or on the DVD that answers this for sure. BTW It's very hotly debated amongst Thing fans, that Childs is a thing because you cannot see his breath in the cold. (It's very difficult to tell if you can or not because of the scene's lighting).

Grumpy Scot

Answer: Just to add to the other answers, I actually saw an interview with Keith David recently where he explained that it was purposely shot to be ambiguous. They shot two different versions of the scene - one where they played the scene as though neither was the thing... and another where they acted more suspicious of one another. And they built the scene out of the footage they had. He also debunked the popular fan theory about how you couldn't see Childs' breath being a hint... he explained that the way the scene was blocked, the air around him was slightly warmer than it was around Kurt Russell due to the fire and the debris around them - hence you just couldn't see his breath while you could see Russell's, who was about 5 or so feet away. (Not to mention you can actually see a little bit of his breath once or twice.) It wasn't a conscious decision to try to hint that Childs might be the thing. The scene really is just meant to be super ambiguous and unexplained.

TedStixon