Somewhere Unknown DEMO (Source 2013) file

This release makes the game use Source SDK Base 2013 instead of 2007, it adds the following:

Better lighting

Higher performance

mat_fullbright is off by default

Fire smoke no longer generates at 0 0 0 and it doesn't cause lag

No more crashes relating to binaries

I still couldn't fix the music though :/

USE THE BETA BRANCH!