The FBI said the group made between $15 (£12) and $18 million (£14.5 million) off the plot, the gaming website Kotaku reported, citing court documents.
The group, consisting of Anthony Clark from Texas and three co-defendants, is accused of hacking EA's servers to mine the game's online currency Coins. The hacking group then allegedly sold the FIFA Coins to other players through “black market” dealers.
The hacking group faces several of the charges that two years ago were brought against officials of the soccer organisation Fédération Internationale de Football Association (FIFA), the video game's namesake.
The group has been linked to Xbox Underground, a hacker group that was charged with stealing $100 million (£80 million) worth of intellectual property and proprietary data from Microsoft, Valve and other companies in 2014.