Versu is a project using AI-driven characters to produce dynamic interactive fiction about social situations. It builds on an AI engine created by Richard Evans, combined with conversation engine work based on some of my earlier IF experiments.
The first Versu-based release is Blood & Laurels, a political thriller set in ancient Rome: you play Marcus, a poet who works for a veteran general. Early in the interaction you get dragged unwillingly into involvement with a plot not of your making, and what happens next is up to you.
You can find out much more about Versu and upcoming titles at versu.com.