[3][4] TeamTNT originally formed as a two-group entity: the Alpha group whose concerns centered primarily on level design and mod work employing pre-existing Doom II resources as developed by the original Id Software team, and the Beta group who would be focused more closely on partial and total conversions including sprite changes.

[3] The Beta team dissolved shortly after the official formation of The TeamTNT Trust, the legal entity which dealt with Id Software during negotiations concerning Final Doom.

[6][7][8] A number of TeamTNT members were also involved with the LUC project (a game then being developed by Suspension Software based on the Quake II engine).

[9] Most of TNT's ongoing projects were cancelled in 2007, and the last level pack released by the group was Eternal Doom IV in 2008.

TNT website administrator Ty Halderman continued to maintain the /idgames archives[10] until his death from brain cancer on July 31, 2015.