Here is the trophy listing.
Also, I guess I didn't read the blog correctly because this also includes Master Levels for Doom II, as Nevander pointed out.
Damn.
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Doom Classic Complete Trophy List
7 of the 13 are already in the XBLA Doom and Doom II. Then you just have to complete each of the 6 games on "I'm Too Young To Die". Super easy.
Damn.
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My thinking is that since these were already released for the PSX (well, actually a mix of Final Doom and Master Levels), that's why they were released for the PS3. Maybe Sony has the exclusive contract or something dating back to when they were first released on the PSX. I'd honestly be mighty surprised if these were ever released on XBLA. One could hope, but I really doubt it.
But... Master Levels was released for the
original Xbox as extra content on the Doom 3: Resurrection of Evil disc. Hmmm....