The .zip format is commonly used for distributing early-access builds or "Chapter 1" content outside of primary store launchers.
The game is cataloged on SteamDB under depot ID 2761921, indicating regular updates and manifest recordings. Gunpowder-Cocktail.zip
Released in chapters, the game allows for time-skipping and map navigation to explore different scenarios within the narrative. Technical Details and Versions Gunpowder-Cocktail.zip