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Name: Sime~Gen
Creator: Jean Lorrah and Jacqueline Lichtenberg
Medium: books
Country of Origin:
External Links:
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Sime~Gen aka Sime/Gen and Sime-Gen is a Science Fiction shared universe in which Jean Lorrah and Jacqueline Lichtenberg write novels.

From the Sime~Gen website: "Imagine a world, our world, in the far distant future. Humanity has mutated into two different races. There are the GENS or generators of SELYN the energy of life. Their bodies produce more selyn than they require to live. Then there are the SIMES. They require SELYN to live, but their bodies don't produce it. The only way they can obtain SELYN is from a GEN, which can kill the GEN. Can humanity survive under these conditions? This is the premise behind the Sime~Gen universe, created by Jacqueline Lichtenberg. For almost 30 years these novels have captured the imaginations of men and women of all ages. They have banded together, created beautiful art, written wonderful stories and novels, published fanzines, formed mini-clubs known as Householdings, and more recently have invaded the internet, to create what we lovingly call the Virtual Tecton." [1]

Summary from Secret Pens: "Set on a post-apocalyptic Earth, they tell the story of a humanity split into two separate races: the energy-producing Gens and the tentacled, energy-feeding Simes. At first, Simes kill Gens to get their selyn or life energy. The two halves of humanity live in separate nations in a state of perpetual war. But then it is discovered that some Simes, called channels, are able to take selyn safely from a Gen and give it to another Sime. Some Gens, called Companions or Donors, can learn to give selyn safely to any Sime. Eventually there comes to be peace. Together, the eight published novels and two published short stories span several centuries from horse-and-buggy era to spaceflight."[2]

Description from another fan: "The Sim-Gen series was about a future Earth in which humans had split into two species, one of which became dependent upon the other in a pseudo-vampiric way. The stories revolved around efforts of some of the 'predators' to find ways to draw sustenance from their 'prey' without killing them in the process. The act of transfer was described in these books in a highly sensual, subjective way... long before Anne Rice made her fortune with gothic-romance-vampire stories." [1]

Its Origins

From a 2003 chat with Jacqueline Lichtenberg: "I used the same research I had done for star Trek Lives! based on fan reader responses to my Kraith Series to construct the first novel in the Sime~Gen Universe....The core of that novel, House of Zeor, is what I called in Star Trek Lives! The Spock Effect. I sold it to 60 Spock fans on a money back guarantee and never had one returned. In other words, it works. Today, many more than 50 fans are writing Sime~Gen fanfic, posting it to the web, and having a ball. They role-play online, and do all kinds of things. So Sime~Gen does indeed capture whatever quality it was that ST had that made people want to write ST fanfic. I'm very pleased with the way that has turned out. I was as far as I know, the first writer to allow people, to encourage and train people, to write in my universe.[3]

Recorded Material on Tape

At one point, the Sime~Gen material was being recorded. "Much of the S/G fanzine material has been taped for the blind and handicapped readers. But the project head has retired. If anyone wants to take over, contact Karen Litman." [4]


Fanzines in the Universe

FanQ Awards


  • 2005 STORY – GEN-A Matter of Necessity – Author: D. DaBinett

Honorable Mentions:

  • 2005 SIME-GEN - 'ZINE – GEN - Sime-Gen Cooperative Fiction (SGCF – 2004) – Editor: Beverly Erlebacher
  • 2005 SIME-GEN - 'ZINE – SLASH - A Companion in Zeor #21 – Editor: Karen MacLeod
  • 2005 SIME-GEN - STORY – SLASH - A Companion’s Duty – Author: Lexie Pakulak

Information about the pro-books

  • First Channel
  • Channel's Destiny
  • House of Zeor
  • Ambrov Keon
  • Zelerod's Doom
  • Unto Zeor, Forever
  • Mahogany Trinrose
  • RenSime
  • The Unity Trilogy
  • Personal Recognizance ((#9, 2010, publ. with #10 in Wildside Double #14)
  • The Story Untold and Other Sime Gen Stories (#10)
  • To Kiss or to Kill (#11, 2011)
  • The Farris Channel (#12, 2011)




  1. Your Gateway to Sime~Gen© Fandom (accessed 28 Feb 2010)
  2. 2.0 2.1 What is Sime~Gen?(accessed 28 Feb 2010)
  3. StarTrekFans.Net from a chat with Jacqueline Lichtenberg, 8 March 2003, accessed 9 May 2012
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