A third game written by my father, Barrie Eaton, has now been released to Android devices.
This was originally released in 1991 in the U.K.
Like Moonbase 3 and Mystery of the Dark Manor, this uses the same engine to maintain a consistent user experience.
The demo links here: https://market.android.com/details?id=Guardian.demo
And, if you like it, the full release is here: https://play.google.com/store/apps/details?id=Guardian.Complete
Hope people have as much fun playing it as I did converting it for Android