I hacked Adventure to look vaguely like Haunted House using CYOA and browsing through many of Nukey's and others' numerous posts. Sorry I don't have decent programming skills; this is mainly a graphical hack, but has some functional changes including mazes. I did not use the optimized source, but this allowed me to play with the b/w switch for colour effects. Please let me know what you think. (This is my first hack.) Game 3 is working; the setup of the mazes and objects in game 2 initially had me worried. I hope to finish the hack soon; I'll try to work on it as much as possible but I'm starting graduate studies next week. I'm planning to ask Atari Age to help me make a cart and manual; everyone is making this a fun activity and I hope you enjoy playing it!
The story is: In the 1980's, a magical urn was discovered in Grave's Manor despite the rumours of people being frightened to death in the old house. Unfortunately, Old Man Grave's body was desecrated during the discovery. His tomb was dug up and his head removed. Now Old Man Graves is really pis - I mean, restless, and the town of Spirit Bay will be cursed until it is returned to his tomb. Some people say that the ghost of Old Man Graves has disturbed the slumber of other malevolent spirits... yaddah yaddah yaddah...
I'll fix the story more in the manual...
(The older versions are here for reference)
rc02 has minor graphical fixes.
rc03 has more graphical fixes.
rc04 has coding changes and minor graphics fix...
rc05 final? more changes...
rc06 longer ladder - see below for file
rc07 fixed cavern mazes - removed glitches and minor re-design