Loved the game. The gameplay is probably my favorite out of any other fps game. Story and characters could use a bit better development, but that's alright.
The only real suggestion I would have is a coop mode. It's the only viable multuplayer option that would keep most of the gameplay elements that make the game so great. Trying to create a player vs player mode probably wouldn't work since combat dynamics are rather different in that compared to fighting npc's.
So yeah, keep up the great work Ritual!