I've been messing around with a lot of freeware lately, and the best of that experience has been the 2003 game, 5 Days a Stranger. Since I often think about the relationship between myself as a player and the character that I am inhabiting, I got really interested in the way in which possession becomes a major way of driving the plot of the game.
This new essay might serve as kind of a companion piece to the one that I wrote a couple of months ago called "But Who Am I?: Schizophrenia as a Metaphor for the Player-Character Relationship", recalling some similar ideas:
Possession As a Metaphor for the Player-Character Relationship