STALKER does something mildly clever. When you get to Ghost's corpse (at the end of the second X lab) the audio log tells you he was going to find the guide, and the guide would lead him to Strelok. Remember, that was your original goal, find and kill Strelok? But Barkeep and Trader have no interest in that, so they'll keep feeding you your next objective. If you follow the Strelok lead you'll get the information you need to get access to the real ending, which involves carving your way through even more Monolith forces, and ultimately puts you face to face with the source of The Zone (it also resolves the Strelok plot thread), letting you choose to join or destroy it. The Monolith itself is a trap. If you follow the instructions of the Barkeep and the Trader, you'll end up falling into that trap.dark-mortality said:S.T.A.L.K.E.R. Shadows Of Chernobyl. The first (and so far, only) time I finished it... Well... I got crushed by the freaking roof... I WANT MY WISH DAMMIT!
A bit silly to die because of the roof. Mutants? No. Super-armored soldiers? Nope. Radioactivity deluxe? Nich. A roof? Obviously yes for some inexplicit reason... I wanted my wish T_T I would have wished for clean underwear
According to Call of Prypiat the Marked One did get to the true endings, and chose to destroy the zone (it didn't work.)