The Escapist reported earlier that the team that produced Bioshock: Minerva's Den is working on a game described as a "logical mystery".  Based on this trailer, it looks very much like just that - a first-person mystery, revolving around a fair bit of exploration and interaction.

While it looks as though it will essentially be an adventure game, I note with interest that, if I understand correctly, the project lead has stated that there are to be no adventure-style "puzzles" - that is to say that the challenges faced are intended to be reasonable and logical, rather than obstacles thrown up in front of the player.  To quote from the above-linked article:

That said, Gaynor is keen to avoid what he describes as "wackiness," saying that there will be no adventure game puzzles. Yes, you can use a screwdriver to undo screws on a vent thus allowing you access, but you'll never need to worry about finding wax and a horseshoe to make a do-it-yourself handle for a trapdoor. "There is nothing that was put there to try to delay the player," says Gaynor. It's all about the situation, not an artificial challenge.

For myself, I'm rather intrigued.

(For those more familiar with Bioshock, was Minerva's Den DLC for either the first or second Bioshock game?  If so, do I take it correctly that this is a side-team that is producing this game, rather than the core Bioshock team?)

Should be my type of game. Looks promising, even in the rough pre-alpha footage. Thanks for the heads-up!

Oh, and Minerva's Den was connected with Bioshock 2.