Playing word games makes vocabulary stick because they get you actively...

https://wiki-dale.win/index.php/Why_I_Can_Understand_English_But_Can%E2%80%99t_Find_the_Words

Playing word games makes vocabulary stick because they get you actively recalling words instead of just reading them. For example, guessing the word "respawn" in a game helps lock it into your memory by using context and getting immediate feedback