(en) Sebastian Deterding, « Progress Wars: Idle Games and the Demarcation of “Real” Games », Digital Games Research Association and Society for the Advancement of the Science of Digital Games, vol. 13, no 2, (ISSN2342-9666, lire en ligne, consulté le ).
(en) Sebastian Deterding, « Progress Wars: Idle Games and the Demarcation of “Real” Games », Digital Games Research Association and Society for the Advancement of the Science of Digital Games, vol. 13, no 2, (ISSN2342-9666, lire en ligne, consulté le ).