Coldenlight is a free cooperative action-adventure game with a strong focus on open-objective based gameplay. The Coldenlight: Survival Horror Alpha is currently available. (The final game will be free, what you purchase is early access and alpha content that will not be released for free)
You'll notice the graphics on these are much lower then the last level. This is so more people can play it. They will look nicer then this though, they are incomplete.