I didn't see this in the list of suggested games. Anyway, I found this while looking through the archives of jayisgames.com (awesome site, you should check it out; has tons of indie games). I thought it would be something pewdie would play.
I think it's on steam or something.
You play as an archaeologist working on the slopes of a dormant volcano somewhere in Mexico, and a technical malfunction gets you stuck in a cavern. It doesn't take long before you realize this is more than just a cave. You reveal ancient ruins that have been hidden from outsiders for centuries and discover a mysterious artifact, a gold and metal shelled Ball. As you venture deeper into the volcano, you reveal some of mankind's greatest secrets...
I think it's on steam or something.