I was hoping for a good game survival but the game is too simple, usually this type of show will have a game with intriguing battle of wits between people and to solve the game.
Here the game is too simple and there is no use of thinking too much and I didn't find myself attach to the characters, granted that I've only watched until the end of 2nd game, but I still don't feel very attached to them.
If you really want to know a better one, you guys should read / watch Liar game (not the korean drama please) and As the God's will.
At least both give us the chance to explore about the MC and empathic for their journey until they clear the game.