After 3 hours with Indiana Jones and the Great Circle, I don't think it's the grand adventure MachineGames is pitching—it's just a fairly basic stealth game
They show it in the preview footage. Hiding bodies, mostly attacking with found blunt objects, using your whip to climb up to ledges. IGN called out Thief, and the Gamespot previewer said it was more immersive sim than he was expecting.