CARY – Epic Games has sued a former contract employee, alleging that he disclosed secrets about its increasingly popular online game Fortnite.

The company filed suit in federal court against Thomas Hannah last week.

“We can confirm the legal action but cannot add further comment,” an Epic spokesperson told WRAL TechWire.

Epic says the worker violated a non-disclosure agreement by disclosing upcoming information about an update to the game.

The privately held company also has been aggressive in suing people, alleging they have cheated in playing Fortnite.

Although the game is free, Epic makes considerable revenue by selling in-game accessories to players.

Fortnite also recently hosted ultra-bad guy Thanos in a crossover from the mega-blockbuster movie “Avengers: Infinity War.”

Fortnite has risen in popularity during the year. Celebrities, like Drake, have supported the game. According to USA Today, Drake broke a record for “Fortnite” with 628,000 people watching him and popular gamer Ninja.

The game has been downloaded 40 million times.