Editing Multi-user dungeon (section)

===Player versus player MUDs===
{{Further|Player versus player}}
Most MUDs restrict player versus player combat, often abbreviated as PK (Player Killing). This is accomplished through hard coded restrictions and various forms of social intervention. MUDs without these restrictions are commonly known as '''PK MUDs'''. Taking this a step further are MUDs devoted ''solely'' to this sort of conflict, called '''pure PK''' MUDs, the first of which was ''[[Genocide (online game)|Genocide]]'' in 1992.{{R|reesegeno}}  ''Genocide''{{'s}} ideas were influential in the evolution of [[player versus player]] online gaming.{{R|shahromine-geno}}