Think I have discovered the problem with the game I wish to identify. I printed out my library list. I know it's not part of a series, which eliminates a certain percentage of the games. Of the games that are left I thought I would try to match them against the alphabetical list on the BFG home page. Then read the description that comes up when I click on a candidate. Problem. There is no alphabetical list that can be searched on the BFG home page. Just nine pages of 50 games/page that aren't listed alphabetically, or by original date of publication, or any other searchable criteria.
Heck of a way to run a company. Good guess is that the games that are left are the only ones who didn't receive their walking papers with the latest change of ownership.
Good news is the Drawn Trilogy, which I wasn't able to download as recently at three weeks ago, is now available for sale on the site again. Going to try a download tomorrow.