
Pavel Curtis is an American software architect at Microsoft who is best known for having founded and managed LambdaMOO, an online community.

Jeremy Elson is a computer researcher specializing in wireless Sensor Networks. He is also the creator of the popular CircleMUD. Elson received his Ph.D. from UCLA in 2003. He previously worked at Microsoft Research, in the Distributed Systems and Security group within Systems and Networking Research. Recent projects include MapCruncher and ASIRRA. In 2015, he started his career at Google. Jeremy is also known for his work on calculating whether a powerball ticket can ever be profitable.

Brian "Psychochild" Green was an American software engineer, game developer and game designer known for his work on one of the first 3D, MMORPG's in existence, Meridian 59. Operated now by Open Source volunteers, the Meridian 59 servers continue operation after more than nearly twenty-five years.

Lysator is an academic computer club at Linköping University, Sweden with almost 600 members. It is an independent non-profit society, separate from the students' union and the faculties of the university.

Timothy J. Stryker, better known as Tim Stryker or Stryker was a computer programmer, best known as the creator of MajorBBS, a computer bulletin board software package.

TubMUD is an English language MUD which went online in 1990. TubMUD claims to be one of the oldest German MUDs. Tubmud is an offshoot of the Swedish Genesis LPMud and used parts of its library during TubMUD's starting phase.

Wyvern is a 2-dimensional Graphical MUD/MMORPG game which was released for public play on February 4, 2001 by creator Steve Yegge through his company Cabochon Inc. The game was announced to be permanently down on November 24, 2013, but came back in 2016 for iOS and in 2017 for Android. Wyvern is a free game that is influenced by games such as Crossfire and NetHack. Wyvern is designed to be available on many platforms through a pure Java version.

Nick Yee is an American researcher who studies self-representation and social interaction in virtual environments. Yee earned his bachelor's degree in psychology from Haverford College and received his Ph.D. in communication from Stanford University in 2007. He is a research scientist at the Palo Alto Research Center in California.