The 'TNT' in the title stands for 'The New Technology' and is also the name of the mapping team who created TNT: Evilution.
TNT: Evilution, released on June 17, 1996, forms one half of Final Doom, a commercial product which consists of two 32-level IWADs (the other being The Plutonia Experiment), similar to Doom II. For the modding collaborative, see TeamTNT. Final Doom - TNT: Evilution title screen 'TNT' redirects here.