[Joachim]

I'm kind of been fascinated by the idea of a game either opening immediately with or quickly (within the first thirty minutes to hour, preferably) dumping you into a scenario wherein you have to solve or overcome a not-immediately-obvious "puzzle" in order to escape and move forward into the game, generally invoking a kind of claustrophobia. Anything from trapping you into a single room you have to break out of, to providing a difficult hurdle shortly into the game that effectively "traps" you in the areas before that until you can figure out how to progress more effectively.

I think important characteristics to this are that it must lock you into a space that can't be too big, representing at least a small sub-area within a larger area, and the solution should require some kind of searching and thinking in order to figure out.

Does anyone know of any scenarios that might -- even loosely -- fit this mold?

Honestly, even if it doesn't take place at the start of the game, it'd be cool to hear about it/talk about it.
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