If the gameplay was as compelling as the story, we'd be sitting on an all-timer here. Even then, this still came pretty close to full marks — I'd be hard pressed to find many interactive narratives as well thought out as this. A lot of games can nail the concept or the execution, few marry both with such ease. That such fascinating, heady ideas about existence and what makes us human are woven into this experience without being overwrought or convoluted is to be celebrated. Downer ending for the ages too.