Ah!
You're probably trying to run it through the Itch App, I'll take some time out maybe tomorrow to get it working through there, I've done it in the past. My bad!
Viewing post in Deep Night Detective - Chapter One comments
You could visit the page at https://trainwreckstudios.itch.io/deep-night-detective-chapter-one or download it from Steam at https://store.steampowered.com/app/1471080/Deep_Night_Detective__Chapter_One/ ! :D