The beauty of the series is that nearly every type of game can nicely match with the universe.
RPG? Sure why not, there are a lot of Mudokon types, Fuzzles, maybe even trained Scrabs/Paramites. The Industrialists could have Glukkons, many types of Sligs, Vykkers, Greeters. For heroes there could be Abe, Munch, Stranger, for the Big Bads Molluck, the Brewmaster, the three Glukkon executives.
MOBA? See above.
FPS? There is already one, but imagine a multiplayer one. The two factions against eachother.
Visual novel? The story is complex enough, with interesting characters to be one.
Incremental game? Why not? You could be with the Magog Cartel producing foods or something like that and buying shoddy buildings and employing immoral tactics to boost production.
Platformer? Hmm well... this is the one, I couldn't believe the universe would fit. It just seems impossible and unfitting. /s
I certainly hope that old wrongdoings fade with time.