Shoggren were a race and space-faring civilization that made a failed attempt to invade Centauri Prime during the reign of Emperor Tuscano. During the Tuscano reign a Shoggren ship in the recon part of the Shoggren fleet had crashed landed on Centauri Prime. Also due tot he fact that these aliens were more powerful then the Centauri at that time, its surmised that the recon ship that crashed here did not have enough time to sent a hyper wave radio signal to the rest of the Shoggren space fleet. For Tuscano's part in defeating the Shoggren, Tuscano would become known as "Subduer of the Xon and the Shoggren." After the Xon were defeated, Tuscano began a pro-birth policy to rebuild the population of the Centauri.
|The following is based on The Mongoose Publishing RPG books and contradicts canon sources.|
|Arnassian Caretakers Delgashi Divloda Enphili Faranian Fen Golian Hive Mind Bacteria Kaitay Kinbotal Kulan's race Kurlin Lorkan Lumati Merla Mind-altering aliens Mipasian Moradi N'Grath's Race Na'ka'leen Nimue Norsai Orion Ralgan Riar Scout fleet race Servitors Sh'lassen Shoggren Soom Soul Hunter Streib Tak'cha Tikar Tokati Tzillari Vindrizi Vinzini Visitors Wychad|
|Shadow Servant Races|
|Keeper Shadow Surgeons Sleeper Soldier of Darkness Wurt|
|Extinct and Nearly-Extinct Races|
|Belan's race Ceti Daltron Dureena's race Ikarran Original Lorkan Taratimude Varn's Race Xon|
|Alacan Cauralline Cthulhin Deneth Froon Krish Mitoc Morellian Thrantallil Throxtil T'llin Tuchanq Ylinn|