Valve founder Gabe Newell is setting out on a new adventure — and it doesn’t involve Half-Life 3. Instead, Newell is acquiring Oceanco, the yacht-building company that’s creating his $400 million super ship, as reported earlier by Boat International. Along with Newell’s 364-foot-long superyacht, Oceanco developed Amazon founder Jeff Bezos’ $500 million sailing yacht, Koru, which stretches 417 feet long. It’s also behind the Kaos sailing superyacht owned by Walmart heir Nancy Walton Laurie, as well as the Bravo Eugenia, owned by Dallas Cowboys owner Jerry Jones. As for what Newell plans to do now that he’s the head of a big superyacht builder, Oceanco puts it pretty simply: “His first decision?