The Witcher 2: Assassins of Kings won't be a port when it comes to the Xbox 360, the developers tell me, it will be "an adaptation."

"We wanted to bring The Witcher experience to the Xbox entirely," one developer said in a darkened room as another played through a chunk of the game. "It will have an engrossing mature storyline with emotionally draining choices, a high level of graphic fidelity."

It will be, he said, the most complex and unique role-playing game ever released on consoles.

Here's a look at that promise in action, though they did warn us that what we saw and you see now is a very early build.

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