Deus Ex: Nihilum (DXN, DEN or Nihilum for short) is a First Person Shooter mod taking place in an alternate Deus Ex continuity - released on May 28th 2013. It features new made-from-scratch original content, while also extensively featuring material from the UNATCO Born mod (used with permission from fender2k1, UB's project leader) and Deus Ex: Revision (used in accordance with the mod's license).
This is far most the best Deus Ex SP mod I have ever played and it is better than TNM, 2027, and other mods.
You MUST not miss to check out this mod! The mod offers amazing level design, great story, nice weapons, awesome soundtrack, new textures, and graphics.