This paper theoretically and empirically explores cheating in MMORPGs. This paper conceptualises cheating in MMORPGs as a sociotechnical practice which draws upon a non-linear assemblage of human actors and non-human artefacts, in which the practice of cheating is the result or the outcome of an assemblage. We draw upon the assemblage conceptualizations proposed in [16] and [8] and on empirical data taken from a pilot study we have conducted during the period September-November 2008 and from an ethnography we are conducting in the MMORPG Tibia (http://www.tibia.com) since January 2009. This game in particular was chosen because CipSoft, the company that develops the game, launched an anti-cheating campaign at the beginning of 2009.