A dark version of BioticsLab (originally by Tripwire Interractive). Most lights have been removed, some exploits fixed and some minor adjustments were made to make it even harder than the original (as if it wasnt hard enough without lights). Please note that this map was made long time ago, so some things that have since been updated in the original map, might not exist in this one (such as the crawler drophole in the U-room).
Nice preview image.