The City of Baltimore has launched a wide-ranging lawsuit against several companies behind popular online “social casino” platforms or sweepstakes, accusing them of operating illegal gambling businesses that pull in money from local residents while presenting themselves as harmless entertainment. The complaint, reviewed by ReadWrite, was filed Wednesday (March 4) in the Circuit Court for Baltimore City. It names a group of well-known sweepstakes casino operators, including Chumba Casino, LuckyLand Slots, McLuck Casino, Pulsz Casino, Stake.us, High 5 Games, and Fortune Coins. City officials claim those platforms have taken millions of dollars from players in Baltimore through online casino-style games that Maryland law does not permit. "Defendants do not offer a novel product that merely resembles gambling.…