The download is on Itch, tagged with Name Your Own Price. I was recommended $5 by the system, which I paid and didn't regret.
Delvers in Dark Places offers up one page of rules for players and one page for GMs or referees.
Designed for solo play, "So You Want The Tall Vampire Lady to Catch You" is relatively unique in that the win condition is the loose condition, and the game takes a healthy attitude to both. Whatever floats your boat.
Based on the rules found in Honey Heist in the Heresy & Faith RPG, you are an acolyte of the Most Holy Inquisition.