This game is just one part of a universe that's being built up around the disastrous captain. Below is everything that has been released - in chronological order of release - however each story / game is self-contained so you do not need to necessarily read / play them in order.
First there was the Short Story Collection
Then the game Dark Side of the Moon
After that I wrote the short story of Dark Side of the Moon - which contained the essential plot and characters of the game, while adding some more)
Then I wrote the short story The Damaris Touch
The next thing to be released was - you guessed it! - Death Has A Million Stomping Boots!
Currently I'm working on the short story The Wilder Gene, and we have planned at some point the game There's A Hole In My Galaxy!
After that... who knows? :-)