Research into interactive narratives

My inital ideas on interactive narratives was the game '999' by Chunsoft 2009
The game is essentially a graphic adventure, progression through the game vastly depends on the choices you make for the main character: Junpei

The descions you make through the plot can massively effect the of the story, most of which are choices as to which direction junpei should take; with a possible 6 endings.

Junpei: the protagonist is trapped with 8 other people on what is assumed to be a replica of the Titanic; he and the others are part of a game (the nonary game) where they have 9 hours to escape a sinking ship. It is essentially a game of survival and trusting complete strangers.

I chose to look at this game in particular as I wanted my narrative to have a similar choice selection, that directly affect the path the main character will take, along with the outcome the plot will reach.