Steam Duke Nukem 2 and Manhattan broken by latest patch

[necroslut]

The recent (apr 30) patches for Duke Nukem 1,2 and Manhattan Project on Steam resulted in
1) Manhattan Project not starting at all (missing executable error)
2) Duke Nukem 2 not working beyond the first level (missing FILE_ID.DIZ), it also removes the sunglasses that were added in this version
3) All high scores and saves in Duke 1 was erased, at least the game works though.

Since it seems no one reads those games Steam forums, I thought I'd try here instead.