So when i open psychonauts it says that it is running, then syncing then doesn't open. When i run as an administrator i get an error saying that it is missing d3dx9_40 and i've done many tutorials to fix this. I've also reinstalled it and it did not change.

https://steamcommunity.com/app/3830/discussions/0/458605613402084066/

Also try updating net frame/direct x

fixed thank you!