I've updated my first post with the links to the version 0.02 binary and source code.
Saving and loading now works but saving is very slow, it takes about 2 minutes! I think this is because it saves the game data so it can be read as a text file in a very slow way but if I modify it the loading code will need to be changed as well and we'll completely lose compatibility with PC Quake save files.. At least it loads quickly!
Particles are back on although I've limited it to a very small amount, 256, to keep the speed up as much as possible. The bug is not completely solved but it looks better than it did