I've made a new small puzzle game where you use your phone's gallery app to inspect the images and  find the hidden answers to puzzle questions!
Here's the link: https://bearmask.itch.io/image-archaeology-pictish

Game Description
The museum archivist has found some old images and notes from a lost excavation! 
Use the image adjustment features in your phone's photo app to find the hidden answers to their questions.

I made it for the Factory Reset Jam and it's themed around Pictish Symbol Stones, which are historical artefacts I find interesting.