"Fortnite" creator Epic Games has announced $1.25 billion in new funding from multiple investors. The announcement marks the largest ever investment in a video game company, according to PitchBook. "Fortnite" is the most popular video game in the world, with nearly 80 million players per month. The Unreal Engine, Epic's game design software suite, has been used by a variety of developers to create hundreds of games since 2001. Epic Games has announced $1.25 billion in new investments, the largest ever funding round for a video game company, according to PitchBook.