The Doorway Effect Adventure Indie First person About the Game Reviews Gallery Similar Games Troubleshooting PC (Microsoft Windows) Publishers: 2 Left Thumbs Description: The Doorway Effect is a 1-4-player co-op psychological horror roguelike. Explore the inner world of a dying man's mind, racing through door after door in a labyrinth of nightmares. Encounter traumas incarnate, and discover the secrets locked within. If you can survive long enough... Keywords: survival horror exploration procedural generation demon psychological horror roguelike online multiplayer extraction horror roguelike horror