This is my prison template:

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Title                   : The Ultimate space prison
Filename                : prison.map
Author                  : Guillaume Manders
Email Address           : mandersp@cadvision.com (PLEASE E-MAIL ME BACK WITH LOTS OF FEEDBACK!)

Misc author info        : I am 13 years old.

Description             : A prison in space.  I made some neat effects like
                          a monster with a freezeray-proof armor!

Additional Credits to   : 3d Realms for making Duke3D!
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* Play Information *

Single Player           : Yes
Cooperative 2-8 Player  : Yes
Dukematch 2-8 Player    : Yes
Difficulty Settings     : Implemented

* Construction *

Base                    : New level from scratch

Known Bugs              : None but please e-mail me if you find any!


* Copyright / Permissions *

Authors MAY use this level as a base to build additional
levels but must give credit to me if it is distributed!!

You MAY distribute this WAD, provided you include this file, with
no modifications.  You may distribute this file in any electronic
format (BBS, Diskette, CD, etc) as long as you include this file
intact.

* Where to get this map *

web sites: None yet.

ftp: None yet.