Hello everyone. I've never assisted in a lost media search before but I'll see how I can help.
There was a browser game called "Pearl Boy". It was released sometime around 2013 by a Swedish startup known as "Goo Technologies" to showcase their "Goo Engine" and was published as one of the Chrome Experiments. It played like a flash game, but it was fully 3D and didn't require any third-party plugins such as Flash. I tried searching online and found three saved versions although none are close to being playable.
The first version stays stuck on the splash screen, the second shows a black screen after the splash screen and the third one, while being the only semi-playable one, the music is missing and you cannot dive for pearls (normally done by clicking the bottom right icon). I have been able to find a couple of videos from the time, one on a desktop browser and the others on a cellphone.