Chalk, Andy.John Carmack Argues Against Native Linux Games.The Escapist(6 февраля 2013).— «He reiterated his support for improving emulation as the "proper technical direction for gaming on Linux," noting that native ports don't do much that a good emulator wouldn't be able to handle.».Дата обращения: 29 сентября 2013.Архивировано 13 января 2014 года.
Chalk, Andy.John Carmack Argues Against Native Linux Games.The Escapist(6 февраля 2013).— «He reiterated his support for improving emulation as the "proper technical direction for gaming on Linux," noting that native ports don't do much that a good emulator wouldn't be able to handle.».Дата обращения: 29 сентября 2013.Архивировано 13 января 2014 года.