Some games are designed to test self-control, and others make it nearly impossible. In the clip, a man and a little boy face each other with water held in their mouths. The filmer, Dillon, told ...

Jesse Van Rootselaar, 18, created the virtual “experience” on the online gaming platform Roblox before his terrifying real-life rampage, a rep for the company confirmed.

The oval-shaped board has a pattern of carved lines that do not resemble those of any of known game, modern or ancient.