Within the game you will take control of a character known as Maria who has just survived a serious train crash.
Maria is left in control of her brother Alexander, who was blinded from the crash and it is from here that the game takes a serious twist as the boy starts to act a little weird.
The game will be played without any weapons - it will be down to Maria and Alexander to make use of environmental objects as they make their way through the game.
Sadness is rumoured to have 10 different endings and will last around 15 hours each time.
Nibris are developing this game exclusively for the Wii, contrary to such rumours floating around the Internet that Sony want to buy the rights to the game and make it an exclusive for PS3.
It has also been confirmed that Nibris are working with psychologists to make this game as scary as possible.