I really enjoyed Death Billiards and yes it does have this
Twilight Zone vibe too it (there is even a Twilight Zone ep it kind of reminded me of: A Game of Pool)
The one thing that annoyed me was that the young guy's reactions were a bit over the top but then I guess if I was in his situation I probably would be more scared like he was too so I am not sure if I can judge him.
The ending was great though. At first the no answers annoyed me but thinking about it more I think it was better to be left open because it does leave room for interesting discussion. Although I am left with no opinion on what I think so I am not sure how much I can add to it.