Mushroom Hunt is a very well-done game for the Adventuron Cave Jam. It's might be the least cave-y entry, with the cave being tough to find and not even necessary to, well, make a good version of mushroom stew. You see, Granny has entrusted you with looking for mushrooms, and there's even a book on which are poisonous and which aren't. It's a bit surreal, as I don't know many blue or red mushrooms, and you wind up picking a polkadot mushroom, but it's rather a relief you don't need any detailed taxonomy, here.
The presentation is very attractive, with colorful ASCII art for the room graphics, and the game's nicely set out in a square (with the cave off to the side)--Granny's house is in the center, and you walk around and examine the scenery. Unlike most Adventuron games, critical stuff isn't highlighted, because mushroom hunts are meant to be a search. It's not a standard adventure, and there's a nice sense of surprise when something does turn up.
As Brian Rushton mentioned in his review, I too found a bottleneck with one item that opens up a whole bunch of other areas. I had a feeling there was an unusual lot of scenery I could cut away, and this proved right--my first story ended in just picking three mushrooms and making a soup that left Granny and me sick all night. So there's some "you need to look at A so that B reveals C." But it makes sense--it's a relatively commonplace item, but it's hinted at, and it's something you as a kid might be intimidated to have to handle. Once I got through it, though, it opened up a lot. Having that mystery fit in well with the game story, where you had a grandmother you maybe didn't know well.
There are ten total mushrooms out there, and five are safe. (That's a 1/12 chance of winning by accident if you found all the mushrooms.) The game offers no hints of if you have put the right mushroom in the pot, leading to some anxiety even if you're pretty sure you read the book carefully. I sort of wish I'd saved before giving the mushrooms so I could see if there was a particularly horrible end for the maximum toxicity (the author assures you you won't die) but I was surprised how well the ending worked when I just stopped by having gotten three mushrooms, not caring if they were poisoned, just wanting to see the end. It certainly captured some of my fear and excitement of seeing mushrooms in the forest and knowing my own great-grandmother knew which ones to pick, but I had no clue.
The attractive graphics are hardly the only nice bit about Mushroom Hunt. The descriptions make it interesting to sort out what you need to look for, but it's not so confusing you throw your hands up at looking around. And while it is, to some degree, "just keep examining until you get to the end of the road," it's a well-chosen subject, well-executed, and I'm not surprised it had broad appeal.