The Undercroft Arcade has been re-vamped. It now supports the recording of high-scores and Member vs. Member challenges. The Challenge feature still needs a little work but I am on it!
The Undercroft Arcade is set to replace the LttD Arcade as it has the potential for more features and we have a possible 4000 games that can be put there (I have all 4000 games).
The Undercroft Arcade (like the LttD Arcade) is accessible by VIP Members. Just visit the Undercroft and click on "Arcade" in the top menu.
If you find a bug in the system or a buggy game, I have created an "Undercroft Arcade" section in the support forums on the Undercroft. Please report any problems there.