Released in February 2002, Metamorphosis is a witness that even SoM-style games are possible in the OHRRPGCE (and even without pixel-referencing, at that). No further releases are planned, but the script is included and you are welcome to make your own game based on this one.
"Metomorphosis is a game that everyone should play at least once. Its interesting to see the larger NPCs, and fun to ram your fist through some imp's skull. But once you beat it, study the code, and wish you could do that, you'll probably delete it. "
"For being made in around 24 hours, it is quite good. However, there isn't really that much in this. If you are trying to script a double-npc script, you might want to have a look-see. If you aren't, there isn't really anything here for you to investigate. "