Arx Mentis
Arx Mentis is a zone in The Darkened Sea expansion. This zone is a floating fortress of the Combine Empire. "Arx Mentis" is Latin for "Fortress of the Mind".
Video trailer
Preview video below released by SOE. Note that it is without sound:
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All are welcome to use for fan websites or personal use. Video copyright Sony Online Entertainment LLC.
Gallery
All are welcome to use for fan websites or personal use (desktop wallpaper). Images copyright Sony Online Entertainment LLC. Click image for full size.