Sheepy

I agree with above. I will say that the [Singleplayer branch](https://github.com/ValveSoftware/source-sdk-2013/tree/singleplayer) does still exist, its just on a separate git branch. So this would be even easier to do considering...

I am getting the same assertion. I am using the latest Windows SDK and Visual Studio 2022.

CS:GO uses Panorama which to my knowledge *replaced* GameUI, Panorama was backported from source 2 to CS:GO. So I see little reason for Valve to keep GameUI closed in SDK2013...

I think this would be really nice if this had the ability to select faces, edges and vertexes of a brush, which could allow for easier manipulation of brushes within...