Here I'll keep list of demo stuff (mostly in JS)
Some synthesizers made using WebAudio API. All of them controlled by keyboard.
Turn-based strategy which is about planet seizure, inspired by KDE Konquest
Just another brainfck interpreter
Audio related calculators
Simple pages for calculating numbers related to audio mangling.
Pixelman arcade works
Several unfinished implementations of simple "lode runner"-like arcade
Old broken toys