Simon the Sorcerer 3D was a victim of the 3D craze that hit the world after FMV finally went away. The publishers wanted a full 3D adventure, so the developers took the challenge and dove into it Headfirst (the name of the new company founded by Simon the Sorcerer's creators) even if they didn't have any experience with three dimensions. Later they mastered them, creating the great underrated gem Call of Cthulhu: Dark Corners of the Earth, but at the time... what a mess! Simon 3D was too big, too ambitious, and the result was a buggy, clunky game with amateurish graphics that were outdated even at the time. It felt like a prototype, so playing wasn't too pleasant!
Still, this is part of the original Simon the Sorcerer trilogy. If you like the humour of the first two games, maybe you'll cope with all the ugliness in Simon 3D and see for yourself the real game buried into what looks like an 'alpha' release for a game that still needed a lot of work.