Developer: TeamTNT Release Date: June 17, 1996 Source Code Release Date: December 23, 1997
Final DOOM was a retail product which contained two 32-level campaigns, TNT: Evilution and The Plutonia Experiment. It used the same weapon and feature set as DOOM II and the episodes were contracted out from the DOOM level editing community.
If you haven't already, make a "~/Library/Application Support/uzdoom/" directory. Copy "TNT.WAD" and "PLUTONIA.WAD" from an existing installation of Final DOOM into it. From here UZDoom.app should run and be able to find the data. If it can't, it will prompt you.
If you only have one WAD file, like "DOOM.WAD", it will just run that. If you have any other WADs, like "DOOM2.WAD", "TNT.WAD", etc., it will ask which one you want to run.
For more information on getting the game's data onto your Mac check our FAQ