I didnt want to hijack this thread https://gbatemp.net/threads/drc-sim-help.451924/ because I am further on than that. I got the server running and the client running (with help from Rolando Islas) but when I enter the ip in the client it crashes with the attached error. Now I have done some reading and found out its a java audio device problem which Rolando cant reproduce here https://github.com/rolandoislas/drc-sim-client/issues/5 (I am Flumper btw) and basically I have 2 questions. 1 - The same question I asked over there. Can java be compiled without audio dependancies so I can use the PC client? 2 - If anyone has got this working with the android client, a very small tut would be very much appreciated? Thanks for taking the time to read this and "any" help would deserve a drink or two on me lol.