My game won't allow me to playtest it

[TopazowyGolem]

Godot Version

4.3

Question

I try to playtest the game I made (literally just larning), and it won't let me open it. It just shows a new black tab for a split second and then closes it. How do I make it work?

[soapspangledgames]

Be more specific, so someone might be able to help you. By “black tab”, do you mean you are trying to run it through a browser?

[TopazowyGolem]

This is what I meant, I use the PC version that you download

After that, the tab closes and nothing happens

[FreakyGoose]

Is any error printed? Are you sure you are running the right scene?

[soapspangledgames]

Which tab closes? main or main_player?

[TopazowyGolem]

This (PS: I just found out it does, as I never have the console open)

[matheusmdx]

This error means your graphics card doesn’t support vulkan, you need to set your project to use the compatibility mode (opengl3). From the print you put you’re opening your project overriding the project setting renderer backend for the editor, but you need instead set your project to be always using the compatibility mode.