“.I loved the original DOS adventure game with the trolls and the plovers.”
You might enjoy interactive fiction pieces that are still being written, and offered free to download. Some of these are exceptional. Here’s a link to a list of “favorites” lists with ratings and reviews:
http://ifdb.tads.org/search?browse&list
Back in the mid 90s, a friend gave me a copy of game called Cyber dogs which was a character with different weapons going through mazes. The maze layout was kind of PAC man like. Love to find a working copy somewhere.