Hello, it's slow, but I'm working on a sequel. In general, according to the plot, the story develops in the games in such a sequence, they were just created out of order
Ghost Castle-Blue Shift
Ghost Castle-Bounty Hunter
Ghost Castle
Ghost Castle-Return to the Castle
Ghost Castle-Maid in the Dark
I recommend that you immediately download the 5 in 1 collection, all the games listed are there