Denuvo is a digital rights management (DRM) solution and anti-tamper software developed by Denuvo Software Solutions GmbH, a software company based in Salzburg, Austria. It is designed to make it more difficult for people to "crack" games and distribute them for free. Denuvo encrypts game files, making games protected by Denuvo very difficult to crack or mod. It also uses virtualization during the decompressing and decryption phases, replacing bits and pieces of the games code with entirely different code that uses virtual machines that Denuvo creates.
Denuvo has been known to hurt game performance, making the gaming experience worse. However, there are conflicting reports on the extent of the performance impact. Some reviewers have found that games with Denuvo have significantly higher frame rates and lower loading times when the DRM system is disabled.
Despite the controversy surrounding Denuvo, game developers continue to use it as a way to deter piracy and boost sales. However, some gamers dislike Denuvo because it limits their ownership of the games they play and can make it difficult to preserve games for future generations.