Scene looks a bit dark and there is no global illumination from other light sources.
are you using skylight, lightmass importance volumes and post processing volumesin your scene?
Viewing post in Dashie's Puhranormal Activity (Demo OLD) comments
The full version of the game had all of it's lighting updated including skylights, lightmass volumes, post processing, atmospheric fog, and more. I have a sample video on my YouTube channel.
Unfortunately, the demo has a small glitch where the flashlight gets really dim due to a battery life mechanic I had in the game but partially removed. The mechanic would cause your flashlight to start dimming when the battery got low. After I removed the mechanic, or at least I thought I fully removed it, the demo would automatically set the flashlight to it's lowest possible brightness setting.
Issues are resolved in the full version. Thanks for trying out the demo!