What does the phrase "break the game" mean?

"Typically, to "break the game" means to come up with a strategy or tactic so powerful that it can't be countered. For example, if you are playing a card game, and you find a combination of cards that give you a winning score in one turn, you've broken the game (because there's no point playing the game any more- victory simply goes to whoever gets that combo first). "Gamebreaking" is something that is that powerful."

From Rose Holt on Quora. There are other explanations but they basically mean the same thing.

https://www.quora.com/Ive-heard-someone-use-the-phrase-broke-the-game-while-playing-board-card-games-What-does-that-mean