I already did a post on “The Best End-of-term Revision Games”, but here I am again many years later without the final -s, because I think there is a clear winner:

Rotating revision board game (TEFLtastic classics part 14)

a terrible name for what is actually really intensive but fun practice of whatever you’ve covered as students go round (and possibly round and round). New board games revising emailing, social English and Business Result Pre just added, and the old ones cover countless textbooks for kids and adults, arts and media, and architecture.