Pretty nice, reminds me of when Doom 3 came out in 2004 and everyone was making fun of the fact you can't use a flashlight and a gun at the same time in that game, until someone made a "duct-tape mod".
Gameplay is fun, not super challenging. I'm wondering what would take this mechanic to the next level, perhaps enemies with more surprising movements that will make them harder to predict while blind.
Graphics and audio are very neat, really liked the vibe.
Minor bug - shots don't spawn from the gun's position as expected, and might sometimes instantly collide with a nearby wall when spawning unexpectedly below the character, like when aiming to the left.