Unity games and Steam DRM

As you probably know, Steam allows DRM injection into .exe, which is cool as developers don’t have to worry about creating same DRM via code.

I’ve seen people saying that games made with Unity will not run if Steam’s DRM is used, whether it’s injecting it into .exe or having actual code implemented into the game’s code.

Is it correct? What are the workarounds ?

I beleive steam DRM does not work with unity, however here is a useful code based solution which works well: http://www.aclockworkberry.com/steam-drm-for-unity-3d-games/