Things start off nice and quick with the familiar setup you've seen a thousand times over. However, this is definitely a case where you really have to stick with the movie and give it a chance because by the time things really get started, neither the plot nor the characters are at all like what they started out to be. The editing in the first 20 minutes or so is sometimes a bit choppy with too-quick transitions, but eventually the movie finds its flow. The time loop angle of the plot (think Triangle, if you've seen it) is all about timing, and when to reveal and when to refrain from revealing certain things, and they really got things like that right in this film.
The movie handles the time loop aspect well, though the reasoning for the time loop is not fully explained, and it is mostly left up to the viewer to believe the explanation that works for them. They bring in a lot of different possibilities for what is happening without straight out saying which is responsible - the group sees an aurora borealis, they see references to the Ouroboros in the mine, one of the characters is schizophrenic. I'm still a bit iffy about how I feel about the twist, but at least it did make for a cool ending and pretty awesome final shot. The sound of the hissing snake was another cool thing the filmmakers did to go with the Ouroboros thing and make the mine feel even creepier than it already was.
Mine Games is a cleverly crafted film even with its somewhat difficult storyline. However, it is executed with a nice, subtle genius and doesn't have to do much to be effective for the audience. A very cool surprise from a movie I didn't know anything about five minutes before I watched it!
Mine Games is currently scheduled for a DVD release on October 21, 2014. Thanks to October Coast PR for sending me the link to the screener! Watch the trailer below.