Pathologic: The Marble Nest

Pathologic: The Marble Nest is a limited demo of Pathologic (2017) which was released on December 1, 2016. The creators, Ice-Pick Lodge, describe it as "almost like a small autonomous game that uses the assets, characters, and premise of Pathologic, but works on its own. Kind of."

Plot
The events of The Marble Nest take place on the eighth day of the outbreak as experienced by the Bachelor.

Characters

 * The Bachelor
 * Aspity
 * Sticky
 * The Judge
 * The Masks
 * Dora Feugel
 * Marat Ranin
 * Blacky
 * Sleepy Head
 * Shrew
 * Cookaroo
 * Gull
 * Magpie
 * Oriole
 * Widow
 * Lotman
 * Siskin
 * Shaazgai
 * Tagtaa
 * Shar Shuvuu
 * Bürged

Historical references
Within the demo, certain details give information about either the process of its creation or about its setting.

The pile of money depicted in the "Examine" screen contains coins that correspond to real-world money: (listed from bottom left to middle right to top right) a 1757 Russian kopek; several coins, one of which is clearly labelled '1987', that resemble the Moroccan dirham; a coin too mottled to identify; additional 1757 kopeks; a Spanish gold escudo of unknown year (the coin was issued from 1535 to 1833, but this one is probably from the late 1600s at the earliest, as it is well-preserved); and a British one-pound coin from 1984 or 1989.