Opening multiple Instances of Unity

Unity Engine
1

Hey everyone :slight_smile:

I’m about to make my first experiences in networking, and from this page :

http://docs.unity3d.ru/Components/net-UnityNetworkElements.html

On “Debugging Networked Games”, they state that is possible to have multiple Unity instances open.
How is this done ? I’m unable to open any other Unity project, I always end up with a Unity window saying that i cannot have multiple Unitys with the same project open. If i try to open directly from a scene of another project, the Unity Editor currently open will pop up a warning that it needs to close to open the new project, so., what’s the secret here to have Unity open with 2 instances ?

thanks,
Bruno

2

open the program from the command line with an argument : -projectPath and add the path to the second project

3

Haha, That’s good to know! I’ve been building out a standalone every time I wanted to test something I added; what a pain in the nuts.

4

yup, ehh, thanks appels

5

I can’t get this to work in Unity 3.3. Even with the -projectPath option I still get the error about not having two instances of Unity editing the same project, and then the new instance quits. How does one develop network play without having two PCs?

Cheers
Tim

6

You can create a build and test it with the build and the Unity Editor.

7

Is there a way to attach the debugger to the built game?