This extension can be used seperately from the other multiplayer extensions but it can be used together with them as well.
The example does not show it, but it was already successfully used as a storage mechanism for online creation of game-levels.
Use at your own risk

Changelog:
For > 3.2 change MultiPlay.hx line 70 (Comment out the line) :
//trace("URL_Decode: string: "+str+" Invalid character: at:"+i+" = [ "+p3.charAt(i))+" ]";