Introduced on July 25, 2019, the feature allows for uploading of locally stored save files and synchronization with the Epic Games servers for cloud storage. Automatic save files uploading is enabled by default in the supported games.
Released on February 14, 2019 and expanded on June 16, 2020, the feature enables users to sign into their Epic Games Launcher without an internet connection.
This feature needs to be first enabled through the settings menu of the launcher for which a normal sign-in is required. After the feature is enabled by the user and the launcher is run without an internet connection, the user will be prompted to retry connection, skip sign-in or to continue in offline mode. The user can enter their Epic Username to go into offline mode.
Epic Online Services (EOS) is a suite of cross-platform game services available to third-party developers for free and open to any engine, platform, or store.
In December 2018, Epic Games announced that during 2019 they were going to launch a large set of cross-platform game services for third-party developers based on services originally built for Fortnite. In March 2018, the initial set of services was released, consisting of game analytics and player ticketing. Throughout 2019, these services have been implemented in games like Satisfactory, Dauntless, and Borderlands 3.
The Epic Online Services SDK has been extended with an in-game overlay that allowed in-app purchases in 2019, followed by the addition of an in-game social overlay and achievements in the summer of 2020. Accessible with ⇧ Shift+F3, the social system allows players to join or invite friends in games without relying on their multiplayer user interfaces.