It would be nice to have a page where you can choose to list related groups as right now I only run into them from browsing games which are already part of certain groups. Like being able to list all game series for each genre would be good, or games using a particular engine or groups within licensed titles such as movie-inspired, tvshows, tvcartoons, comicbooks, board games for examples. I find the groups quite interesting in order to stumble on related games that people may not be aware of.
Excellent suggestion. It would be great to browse games by groups.