Forget-Me-Knot is a depiction of Alzheimer's disease created by Alexander Tarvet.
"Alzheimer's disease is a devastating condition for everyone affected and their loved ones, and through playing Forget-Me-Knot the player gets an immediate sense of the confusion the character feels," reports the BBC.
"Computer games are one of the greatest ways to let people safely explore a situation they've never experienced, as you're creating a whole new world to explore. Many games deal with fantasy and fiction, but I wanted to look at something much more serious," Tarvet told MOTD.
See his youtube channel for more videos.