ORGANIZATION@1 ran a competition in January NUMBER@1 offering the lucky winners the chance to play the beta version of S.t.a.l.k.e.r. , in a NUMBER@2 hour marathon session .

ORGANIZATION@1 ran a competition in January NUMBER@1 offering the lucky winners the chance to play the beta version of S.T.A.L.K.E.R , in a NUMBER@2 hour marathon session .
