Duke Nukem 3D USER MAP this one is really worth the download
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Title                   : Day City
Filename                : DAYCITY.MAP
Author                  : KEITH WILLIAMS
Email Address           : NONE
Misc. Author Info       : Long Live Duke !

Description             : This is a level of a city with many buildings
                          that you might find in a city
                          it has 
                          - a library
                          - a post office with an armory
                          - a bar with chicks
                          - a bank with a secret room
                          - a hotel with chicks
                          - two exploding buildings
                          - an indoor pool
                          - a theater
                          - a secret room filled with lots of weapons & shit
                          - a software store
                          - a police station
                          - and a partridge in a pear tree . . .
Additional Credits to   : 100% keith made
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* Play Information *

Episode and Level #     : user level base map Just add sprites
Single Player           : no point to it but it's fun to walk around
DukeMatch Level         : yes
Difficulty Settings     : Not implemented

* Construction *

Base                    : used My level Nitecity.map for some buildings
                          You should add your own sprites to make
                           it more deathmatchlike
                          
Editor(s) used          : Build
Known Bugs              : no known bugs