What Is DRM? Why Games Have Copy Protection and How It Affects Performance

What Is DRM?

DRM (Digital Rights Management) is software that verifies you have a legitimate copy of a game before allowing you to play. It is implemented by game developers and publishers to prevent unauthorized copying and distribution.

Types of Game DRM

Online activation: Requires a one-time internet connection to register the game. Relatively low overhead once activated. Always-online DRM: Requires a constant internet connection to play, even for single-player games. Used by some Ubisoft titles. Adding unnecessary latency points between your PC and a DRM server. Denuvo: The most common modern DRM. Uses anti-tamper technology that encrypts game code and requires online authentication. Controversial because early Denuvo implementations caused measurable performance overhead (stutters, CPU load) on some hardware. Modern Denuvo versions are significantly less impactful. Steam DRM: Steams' basic DRM is lightweight and low-overhead for most games. SecuROM / StarForce: Older, aggressive DRM systems from the 2000s that installed kernel-level drivers. Largely abandoned.

The Performance Impact Debate

Denuvo has been extensively benchmarked. In 2019-2020, some games showed 5-15% performance differences before and after Denuvo removal. By 2023-2024, the gap has narrowed substantially. Most Denuvo-protected games today show performance within measurement noise. The bigger impact is often game-specific optimization (or lack thereof) rather than DRM itself.

DRM Removal After Commercial Lifecycle

Many publishers remove Denuvo from older games years after release, as the commercial piracy risk diminishes. If you play an older game and notice it runs better than reviews suggested, a DRM removal update may explain the difference.