First of all, was linked to this via PC Gamer. I enjoyed Infected a few years ago so it's good to see you're still doing games. Noticed this was built using GameMaker, it's a nice showcase of what the engine can do.
Enjoying this, but may have discovered a bug. When first entering the desert, I sometimes see what looks like a piece of cloth with some balls to the right of it sometimes, and I cannot interact with it. It later disappears when I go off-screen.
One thing that might be a little odd is how some items interact. I'd figured the halbeard could be used to get the fruit per the description, but I can't. Similar story with the loose rock. I'd assume if it's loose, then I could just take it. (Edit, just used it, that did the trick). Simirally, some spells have effects on certain parts of the screen, but not others (the reveal spell).
Also, what are you meant to do with the sun coin? I've gotten rid of the spirit guarding the chalice, but after that, I'm stuck.
The cloth in the desert is an Easter Egg referring to the protagonist, the wanderer, from the game Way of the Passive Fist. Although getting to the screen with the cloth should also be a screen that kills you, sop we'll look into that for sure