WOLFENSTEIN 3-D Add-On Included herewith are two files that provide ten new levels for the shareware version of Wolfenstein 3-D (tm). These files replace the equivalently named files that were provided with the original program. (Note that this product will only work with the shareware version 1.1 of Wolfenstein 3-D.) Before installing, I recommend that you first copy the two original files so that they may be retrieved later. These files are: MAPHEAD.WL1 and MAPTEMP.WL1 You should copy these into MAPHEAD.SAV and MAPTEMP.SAV. Note that any saved games will be rendered inoperable once you install this add-on. If you would like to be able to recall these saved games (after recalling the original MAPxxxx files), you should back them up before installing the add-on files. Saved game files are named SAVGAMx.WL1 (where x is a digit from 0 to 9). Copy these into SAVGAMx.SAV before installing the new MAP files. After backing up any desired files, simply copy the included files into your Wolfenstein 3-D directory.