Fellow Retro Fan has created a block ANSI graphic Tank game
that up to 4 people can connect to at same time.

You can also watch others play. It is on a retro chat server
called Land of the Lost.

To go directly to the Tank game select it from the Games
menu item (#14 as of this post).

You could also connect LotL via Chat menu (L)and of the Lost,
and select Tank from there are enter /tank in the chat of LotL.

Enjoy it is a lot of fun. But takes at least 2 players.

Hopefully in the near future, we may have a expected scheduled
weekly or monthly time together and play "Tank".