This is the Doom95 version of the Hellraiser tc. 30 new levels with the final one being a different level than in the Zdoom version.
There was the loss of the dehacked file in this version but that won't make any difference in how the game plays. You just won't get the new text messages and it makes the skinless franks a little easier to kill.
This version is also compatible with the Legacy port.
Enjoy!
Bob Larkin