The Slender Shore is a Id tech 4 game based on the famous Slenderman legend.Entering an empty and dark world in which only you will have to survive. It's based on the Slender slendergame.com
The point of this project is to bring that horror game into a nightmare with enhanced graphics, mind blowing sound effects and a new gameplay system that not only features the picking up papers mode.
Coop was a first option, but was scrapped since it killed the whole 'You vs the unknown'.
Also, you will be able to make your own 'Stories' thanks to the inbuild level editor (Don't worry, there are and there would be tutorials about it).
I would like to point the gameplay as an important factor since the main objective of the game is not only to survive that 'Tall and Thin Unknown Thing', but to the whole environment around you.