I took over the project a while back and made quite a few updates to the Arcade.
It now provides 3 templates plus 3 list types which are interchangeable and also users are able to opt their own choices for those.
One of the templates is an E-Arcade clone therefore that Arcade is now defunct/obsolete.
SMF Arcade now has the ability to play HTML5 games that have been converted for it (obviously the save sub-routine must be added).
Btw for IBP Arcade to support those games it will require someone to take over that project since the developer is now deceased.
You can download the latest version of SMF Arcade on its newer support website located here:
I welcome anyone who wishes to convert other HTML5 games for the SMF Arcade platform.
You can view the save routine on the above website and also post in the forum for support to do that.