Upcoming first-person steampunk stealth action game Dishonored is apparently 12 to 14 hours long for “very direct players”, Arkane Studios has divulged.

The title will apparently take around 28 hours for eavesdropping players who wish to explore.

"Play-style matters a lot," co-creative directors Harvey Smith and Raphael Colantonio explained over at the Bethesda Blog. "Very direct players will probably get through the game in 12 or 14 hours. Explorers who eavesdrop a lot will take twice as long."

The blog post also brought detail of six major powers and four enhancements (passive powers), along with weapon, gadget and bone charm information. Apparently it isn’t possible to have “have all these things in one playthrough”.

Mana was explained a little too: "A small portion of the mana bar regens; just enough to use powers like Blink and Dark Vision, making them basically free," the pair wrote. "Beyond that, for the expensive powers like Possession or Bend Time, the player must rely on Piero's Spiritual Remedy (mana potions)."