고스톱 is a traditional Korean card game played with a deck of hwatu cards. The game is typically played by two to four players, and the objective is to collect sets of cards to score points. Players can win by either reaching a certain score or by declaring "go-stop," which allows them to risk their current points for a chance to win more. The game involves strategy and luck, as players must decide when to play their cards and when to take risks. Go-stop is popular in social settings and often played during family gatherings or celebrations, making it a significant part of Korean culture.