There's a set in Squid Game that is a hotel basement that has been stripped of its usual trappings and instead has various targets for shooting.
Katt said it looked like my parents' basement. It does!
They do not have shooting targets, but they do have a net that they hit golf balls into, shelves full of DVDs no one wants to buy, and various boxes of merchandise my dad bought cheaply at auction. It resembles the warehouse he used to run his business from. My uncles also had places like this.
To me, unfinished basements with makeshift stuff in them are very Korean.