The sddmsp123maps.exe file you have requested: Modifications / SuperDuper Quake / SuperDuper DMSP Quake v1.23 with Maps - 29.62mb is not available. Perhaps try browsing all files for the game Quake and upload any files you want to share or are missing. This is the only information we could locate:
SuperDuper DeathMatch Single Player Quake 1.23 Thanks to aardapel, per-kr, bengt and many more thanks in bondo30.txt New: two more monsters, more maps, and more guns. and a start map! this is an interim patch. version 1.3 will be even newer and SuperDuper DMSP Quake has been updated to v1.23. This file includes the maps as well.