The zip file likely contains the following components, as detailed on the itch.io project page :
A 418 kB PDF version optimized for readability or accessibility. Key Aspects of the Game Genre: TTRPG focused on high-stakes narrative. GOD-KILLER-master.zip
Based on the search results, is a tabletop role-playing game (TTRPG) created by Connie Chang, available on itch.io. The zip file likely contains the following components,
Designed for players who want to explore themes of killing gods. Designed for players who want to explore themes
A 734 kB PDF outlining character actions (moves).
If you can confirm this is the correct game, I can help you find: The specific rules on How the "Moves" system works Setting details (the gods you are meant to kill) GODKILLER: First Blood Edition by Connie Chang - itch.io
A 4.9 MB PDF for recording character details.