>The way I understand it, CEG works by signing the binary to a specific Steam account for when Steam is used.
I don't know the technical specifics, but I'm sure that's true. However, I'd argue this is still an implementation of DRM as it goes beyond just watermarking. Offline mode works because it previously downloaded your authorizations from Valve, and those are cached offline for a period. But there's still a key and lock system in place that needs to be met. That is, if you were to copy your game install folder for a title that uses CEG, you would have problems running that executable.
Titles without CEG would still work, assuming there's no other issues like missing registry keys, %APPDATA% entries, etc... (one of the reasons a DRM-free installer is important to me -- improved portability).
I admit Steam DRM is fairly unobtrusive, and its offline mode works way better than it used to a few years ago.
>At least Valve/Gaben has gone on record on several occasions to say that the digital assets are structured in such a way that they'll continue to work even if Steam/Valve disappears (dies or what have you).
Just to clarify, is this the same quote of "If Steam ever goes under, we'll release a patch to remove the DRM"? Because I've been following and trying to track down that pernicious quote for years, and have never once found a credible source on the matter. It's always "archived post of forum moderator", or "tier 1 support supposedly said". But never a credible source from the company, in the Terms of Service, or anything that would hold up. I'm pretty convinced at this point people only pass it around because it's a comfortable lie.
I'm not sure if that's the same quote you were going for, however. How the assets are structured seems like it could be a different issue.
>If I needed to be online for my purchases to work, I wouldn't be using Steam anymore.
As I understand, you still need to go online for the initial run, correct? And also if there's been any updates/patches I believe.