Player 111, a disgraced doctor, secretly works with a handful of staff to harvest organs from dead players to sell on the black market, in return for information on upcoming games. When Deok-su kills a player accusing him of taking extra food, the staff does nothing to stop him, and the prize money's value is increased. After lights out, a riot erupts in the dormitory as players attack each other. Gi-hun's group survives and exchange names to build trust: Player 199 is Ali Abdul, and Player 067 is Kang Sae-byeok. Player 001, because of his brain tumor, has trouble remembering his name. Player 212, named Han Mi-nyeo, has sex with Deok-su. In the third game, players are told to form groups of ten. For Gi-hun's team, Sae-byeok recruits Player 240, a girl close to her age. The game is revealed to be tug of war on two raised platforms, where a team wins by dragging the opposing team off the platform to their deaths. Deok-su, having learned of the game from Player 111 beforehand, picks only strong men and rejects Mi-nyeo, who joins Gi-hun's team. After Deok-su's team wins their match, Gi-hun's team struggles against another all-male team.