Game crashing at startup. Are you using Citrix?

Game crashing at startup?

First things first, lets ensure all of your machines drivers are up to date. Graphics Driver, Windows, Audio, etc. Ensure nothing else is running on the machine, and you are running the game as the admin, and through Steam, not a shortcut.

It's a known thing that Unity and Citrix just dont seem to get along. If you are having issues, and use this program, this may help you.

Below is taken from a Steam member who found resolution with his Unity programs conflicting with Citrix. 


"I hope to save people time dealing with this problem. Just to be clear, this is not a Game Developer issue rather an issue found with the Unity game engine. It is unrealistic to think most players would make the connection that "only games built on the Unity game engine" are crashing and then search for for that. It took me over a day to realize it. Once I changed my search, I quickly found the solution to my games crashing at startup.

The problem lies with the Citrix Workspace Hub. Specifically, the Citrix Casting that installs a display adapter called "Citrix Indirect Display Adapter." The full read is here:

https://forum.unity.com/threads/unity-2018-2-7f1-windows-standalone-crash-on-first-run-unityplayer-dll-caused-an-access-violation.556585/

Fix 1)

Originally posted by markholley:
You can also open up the Device Manager and disable the "Citrix Virtual Bus Enumerator". You might have to re-enable it to use Citrix.

Fix 2)

The fix can be found in the thread but to save time, I'll quote TheDakk:
Came across this issue today when installing Legends of Aria. This issue is due to Citrix Casting in the new Workspace Hub feature added to the Citrix Workspace recently.

Uninstall Citrix Workspace and Re-Install it from Command Prompt using the following command:

CitrixWorkspaceApp.exe ADDLOCAL=ReceiverInside,ICA_Client,AM,SELFSERVICE,DesktopViewer,Flash,Vd3d,WebHelper,BrowserEngine

(there's a space after the executable name like a typical parameter)

This will install Citrix Workspace without Workspace Hub which has the Citrix Casting driver causing the crashing.

I have 10+ years Citrix Engineering experience. Happy Gaming!
The key here is to uninstall and reinstall Citrix from the command prompt. This immediately fixed all my issues with Unity games not running. Archiving this fix here."