I looked up the translation of "Malpertuus" (I won't spoil it tho :P). The game's about alcoholism, right? How you just kind of stumble upon it, but the more you find it, the more it finds you, until it's eventually inescapable.
At least, that's what I've interpreted it as. Please let me know if I'm close!
Malpertuus is the name of an underground fortress from a medieval novel. It is also the name of one of my favourite paintings.
See also https://nl.wikipedia.org/wiki/Malpertuus
It is not directly about alcoholism, but rather about people who have to search rubbish bins for empty bottles and exchange them for deposit money at supermarkets in order to make some money. An empty bottle is 0,10 cents in my country... So collecting 500 of them a day would make 50 euro. 50 x 30 is the minimum wage 1500. I have to note that nothing special happens on day 30 of the game. There is no real end in the game...
