Not a Saudi prince or an oligarch, but it is American video game billionaire Gabe Newell that has an armada of luxury yachts worth around $1 billion. Take a look at his 6 vessels that range from an research vessel, a 365 feet long luxury yacht and even a hospital ship.
byThere are yacht connoisseurs, and then there is American billionaire Gabe Newell. He is the co-founder of the…