The game is said to involve girls being chased by boys, who would then simulate rape once a girl is caught.
Police say the woman was dragged into bushes by two men where she was raped and left for dead.
Police say the 18-year-old was raped and murdered, the motive for killing is unknown.
Chelsea Godlo’s body was found hidden in a sack under a bed earlier this week.
An eight-year-old girl who was allegedly raped by a family friend, has been put on ARVs.
10-year-old Chelsea Godlo's body was found in Gugulethu after she had been reported missing.