If you cannot open the links from the pdf here they are:

Knoword
https://knoword.com/play

Visual Thesaurus Spelling Bee
https://www.visualthesaurus.com/bee/play

Word Whomp
https://www.pogo.com/games/word-whomp/play

Freerice
https://play.freerice.com/

Human Brain Cloud
https://www.humanbraincloud.com/

Scrabble Online
https://playscrabble.com/

LyricsTraining
https://lyricstraining.com/

20 Questions Online
http://20q.net/

Duolingo
https://www.duolingo.com/

Sites:
https://www.fluentu.com/blog/english/games-to-learn-english/

https://preply.com/en/blog/at-home-language-learning-games/

https://smartico.ai/blog-post/gamification-in-language-learning


Other sites:
https://www.gamestolearnenglish.com/

https://www.englishclub.com/esl-games/

https://games4esl.com/esl-classroom-games/

https://www.cambridgeenglish.org/learning-english/activities-for-learners/