This is a Work In Progress - I am at present just trying to get the multiplayer working... No shooting yet :) - If you see someone, well then I guess it's working... Yay! Confirmed working now! Controls WASD to move Arrow Keys to look around Space to jump C to crouch E to shoot (But you can't actually hit a player yet)
I did not make this I changed a few things and this will show you what @griffpatch 's game was like originally, please check out the fully updated version as well. Press L, but don't tell anyone about it. Please no "is anyone here" comments.