The series follows several “players” recruited into a multi-day survival game. The players are renditioned to an island and forced (?) to compete in playground games, with the winners advancing to the next game and the losers being shot, stabbed, plummeted, or killed in some other creative and gruesome fashion.
After six games, the winner is awarded the monetary amount assigned to everyone who has been killed—the final prize being some ₩ 45 billion.
While the nature of the tournament allowed for multiple winners (the final game, squid game, is possible to play in teams) only Seong managed to survive all six games. He left the games as the winner.