My new interactive story maybe make some change is now available in both web-based and Glulx forms. The latter version might be a useful modern stress test for Glulx interpreter authors, since it uses most of the tricks in the book, including multiple sound channels.
(Speaking of which: does anyone know what’s up with the sound in Windows Gargoyle? It sounds tinny and compressed compared to Spatterlight. I saw a post suggesting this might be a result of playing sounds with different sampling rates at the same time, but all the sounds are OGG files with an identical 44.1kHz rate.)