Steam, Origin, Epic Games, Battle.net, and various private game servers.
This write-up provides a detailed overview of the dataset, focusing on its contents, potential applications, and security implications. Dataset Overview 151k UHQ Email-PW Base [Gaming].zip
The "UHQ" (Ultra-High Quality) designation typically implies that the data has been filtered or "de-hashed" to provide plain-text passwords rather than encrypted strings. Description Primarily Email-Password combinations. Source Diversity Steam, Origin, Epic Games, Battle