@dushman @Moon reminds me of slavic scp thing called samosbor (literally self-assember), which is a setting where people live in a "gigakhrushchevka", an infinite mess of a soviet building consisting of living blocks, factories, universities, staircases, lifts, dining halls and other typical soviet facilities. Has no entrances nor exits and if there are some windows only other walls are visible from them with pipes-cables etc. The "samosbor" itself is some sort of deadly anomaly that fucks up everything that it encounters, leaves weird hostile things in its wake, no one knows what it its or how it looks but there is an alarm (if it's functioning) warning of its approach, and only form of protection is walls and hermetic doors only found in living blocks.
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