Microsoft’s $75 billion acquisition of Activision Blizzard cleared its final U.S. regulatory hurdle as the FTC dropped its challenge, capping a nearly two-year legal battle.

After losing key court fights, the FTC is moving on from its effort to undo the biggest gaming acquisition in history.

The Federal Trade Commission is no longer challenging the $68.7 billion Microsoft-Activision merger in its administrative courts, the agency has confirmed.