Game of Death (2017)

A bunch of youngsters play a mysterious game in which you either have to kill a person every one hour or the player's head will explode. At first the teens think that it is just a lousy game but after a while when one of their friend's head explode, they suspect it to be a sniper around. Later they understand the evil power of the game and set out to kill people creating division amongst themselves as some are ready to kill but some aint.