На сайте компании ничего подобного нет. Вот оригинальный текст оттуда:
In April 2007 the company's most ambitious project - Survival FPS S.T.A.L.K.E.R.: Shadow of Chernobyl, set in the near-future Chernobyl exclusion zone, was released worldwide. GSC World Publishing was in charge of publishing the title in former USSR territories, while THQ Inc. operated the worldwide release.
Following the strategy of further brand development, GSC Game World initiated a series of S.T.A.L.K.E.R.-based novels (published in Russian and German), and have sold over 5 million copies overall.