iGaming Business – The Williams Interactive gaming entertainment products and services subsidiary of Scientific Games has launched its first online slot game to be powered by the offline game engine Supercharged Reels. ‘Roman Chariots’, which will be added to the Williams Interactive Game Server library, features three miniature bonus reel sets atop the main slot game. One or more of these mini-reels will charge up with win multipliers each time a ‘wild’ symbol fills reels two, three or four of the main game. All activated mini-reels spin with the triggering symbol of reel five, with all mini-reel wins increasing by…