You have probably noticed it yourself but its never actually pitch black in minecraft. Even if you are in a cave with no torches you will still be able to see something independent of your gamma setting. Hardcore Darkness Mod 1.9.4, 1.9, 1.8.9, 1.7.10 changes this, it removes the minimum block & sky light so if there is no light source its actually dark.

Download Hardcore Darkness Mod 1.9.4, 1.9, 1.8.9, 1.7.10

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