Sequels
In 1991 GDA released a sequel, Hugo II, Whodunit?, and in 1992 a third installment, Hugo III, Jungle of Doom!. Nitemare 3-D, a game that came out in 1994, is arguably the fourth (and so far final) installment of the Hugo series, though Nitemare 3-D, instead of being an adventure game, is a Wolfenstein 3D clone, in which Hugo ventures into the haunted mansion to rescue Penelope by shooting enemies with various guns.
Read more about this topic: Hugo's House Of Horrors