I've never played any of those.
Our previous game, Infested, was saspiritual sequel to Shadowgate, while Spectacle is an unofficial sequel to Uninvited. I highly recommend Shadowgate as it's an absolute classic and one of the best puzzle games ever made. I think the best way to play it is the NES port which can be found on the "8-Bit Adventure Anthology Volume 1" which came out on PS4 and Steam. Of course you can also get an original NES cart for like $8