You can create many AnvilFall-Games.
They are very easy to create:
Use /anvilfall <name> <radius> <strength>
To start a game:
Use /anvilfallstart <name> <time in seconds>
to remove a game:
Use /anvilfallremove <name>
to see a list of all your games:
Use /anvilfalllist
Permissions:
anvilfall.create
anvilfall.list
anvilfall.remove
anvilfall.start
Look at my YoutubeChannel (Lucadcrafter)