Aya Brea reporting for duty, dressed for the occasion and armed with MaGog's randomiser.

Christmas is a special season for Aya, for it brings back memories --- memories of Eve. Eve, who had erupted upon an unsuspecting New York City in the winter of 1997, unleashing her mitochondria and raiding sperm banks in her quest to give birth to the Ultimate Santa.

But, as Breja so colourfully put it, enough of the past; there is a task at hand, to put an end to a new nightmare, for neverending nightmares will not do. Needless to say, Eve is once more at the root of it, having duped a pigeon to do her bid, to kidnap Santa for her to harvest his genes, splice them into plasmids and integrate them into bacilli, to form an unstoppable army of big-bellied, bearded, bonneted bacteria. Unless, of course, Aya stops her first.

Yet what of the sack? For, the fate of humanity aside, one must remember that a video game is at stake. Santa's sack --- Eve had dismissively discarded it to a dark corner of her lair, where no sun shines and no bat flaps and no more clues, without even dignifying its content with a cursory glance.

Guess #31:
System Shock 3 / Dimitrij Volkov / Greece

In for Treasure