Thanks for the feedback, especially about the UI! I knew the concept was going to be too simple to expand much visually, so I tried to make up for that in all other areas of the presentation (the explosion was probably my favourite thing to animate by far).
I did consider providing more precise hints for gold locations as players search around, but I didn't want to make things so explicit as to make the gold hunting exercise trivial and dull the tense threat of being exploded by land mines. Didn't have time to make an in-game tutorial so I throw all of that explanation stuff into the download page description lol
I'm VERY glad that you feel like there's mileage in this idea; I will definitely consider expanding the gameplay and injecting some more visual juice too! :)