Playing word games helps new vocabulary stick by making you use words actively,...

https://andersonssuperbthoughtss.timeforchangecounselling.com/why-i-can-understand-english-but-can-t-find-the-words

Playing word games helps new vocabulary stick by making you use words actively, not just see them passively. For example, when you guess "respawn" in a game, you recall its meaning and how it’s used in context