Save the World is available for macOS,[c] PlayStation 4, Windows, and Xbox One, while Battle Royale and Creative were released for all those platforms as well as Android and iOS devices[c] and Nintendo Switch.

Creative and UEFN also allows players to create custom Fall Guys games which can be accessible within the Fortnite launcher.

[7] The games are monetized through the use of V-Bucks, in-game currency that can be purchased with real-world funds, but also earned through completing missions and other achievements in Save the World.

All modes of Fortnite are cross-platform play compatible, requiring users to use an Epic Games account for cross-saving between platforms.

Ultimately, Epic opted to release Save the World as a premium title, bringing it out of early access on June 29, 2020.

[22][23] This allowed Fortnite Battle Royale to expand to other platforms otherwise not supported by Save the World, including iOS and Android mobile devices and the Nintendo Switch.

[30] Numerous improvements in UEFN were announced in March 2024, including the addition of Unreal Engine's MetaHuman character rendering technology, and more assets from Lego, Rocket Racing, and Fall Guys.

Epic also stated their intent to have future Fortnite Battle Royale seasons starting in late 2025 to be developed in UEFN.

[40] A notable streaming event in March 2018, with streamer Ninja playing Fortnite Battle Royale alongside Drake, Travis Scott, Kim DotCom, and Pittsburgh Steelers wide receiver JuJu Smith-Schuster, broke viewership records for Twitch to date, and led to Epic arranging a Fortnite Battle Royale pro–am with 50 pairs of streamers and professional players matched with celebrities at E3 2018 in June 2018.

Parents and teachers had expressed concern that students are being distracted and drawn away from school work due to playing Fortnite.

[46] Concerns have also been raised about the impact that playing a game involving repeated depictions of gun violence may have on young children.