Watch this series due to the hype. Overall it's good to watch, even though for me I already can guess the "bad" guy earlier.
Episode 1 is quite boring with slow pace and the introduction of characters, etc. Afterwards the pace is quite ok.
But actually for this type of genre the suspense is not really there, not something that make you glued to the screen, maybe because it's similar to hunger game, so the surprise elements is not really there. Sometimes it's just too "lucky" and hard to believe, like how easy for a policeman to sneak in, can survive hiding for few days (no foods and drinks?) and the main role always win easily, especially when he licked the sugar candy and during first game when he about to fall.
The good thing about this Korean version is the moral of the story or maybe the background story on why people are easily blinded by money, and the lost of morality in our society which is kinda true... In our current society, people tend to be selfish and don't care of others, will use any means to reach their own goal.
Acting wise, thumbs up to all the actors and actresses !
Overall, this series is still worth watching, but not up to the hype. And be prepare of some bloody scene for those with not so strong heart to see blood