As Flash Player was abandoned by Adobe & basically sent it to the EOL Graveyard, the Arcade on the site stopped functioning.
As of Jan 2021, Chrome, FF etc has since blocked Flash from their browsers.
I've implemented a new system to fix that issue.
For users that liked & played the Arcade, it is now working once again.
https://www.repgeek.com/arcade.php
That link is in the Community drop down menu at the top.