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// A reference index of every protection system tracked across our PC games database — what they are, how they fit together, and which titles use them.
Digital Rights Management (DRM) on PC is not a single technology — it is a stack. Most modern releases combine a storefront entitlement check (such as Steam or Epic), an optional anti-tamper layer that obfuscates the executable (such as Denuvo), and, for online titles, a kernel-mode anti-cheat that monitors the running process.
This page indexes every protection currently tracked in our database, with a short, neutral explanation of what each one does. For deeper guides on the two most discussed systems, see What is Denuvo? and What is a hypervisor crack?. For live status listings, browse Denuvo games or hypervisor-cracked games.
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Steam's DRM ties game launches to an authenticated Steam account and licensed entitlement. The older CEG component could bind per-user executables and perform integrity checks. Offline mode is available after prior activation, with periodic revalidation by the client.
A software protection layer wrapped around a game executable to impede reverse engineering and modification. It employs obfuscation, anti-debugging, and integrity checks, typically alongside platform DRM for entitlement verification. Its stated goal is to protect the initial sales window; performance impact varies by title.
The EA App handles account authentication and entitlement checks for game launches and updates. EA Anti-Cheat is a kernel-mode component used by select titles to enforce process integrity and detect cheating. Offline access requirements are game-dependent.
Rockstar's launcher and Social Club services authenticate users and verify licenses prior to starting supported games. They integrate cloud saves, updates, and online features. Offline play typically requires prior sign-in and is governed by title-specific policies.
A cross-platform backend providing authentication, entitlement verification, matchmaking, and related services. Games on the Epic Games Store may use EOS or the launcher to confirm account ownership at launch. Offline behavior depends on publisher configuration.
The EA App handles account authentication and entitlement checks for game launches and updates. EA Anti-Cheat is a kernel-mode component used by select titles to enforce process integrity and detect cheating. Offline access requirements are game-dependent.
Short, neutral explanations of the protection systems most commonly seen on PC, grouped by what they actually do.
Protection layers that obfuscate and harden game executables against reverse engineering.
A software protection layer wrapped around a game executable to impede reverse engineering and modification. It employs obfuscation, anti-debugging, and integrity checks, typically alongside platform DRM for entitlement verification. Its stated goal is to protect the initial sales window; performance impact varies by title.
Read the full Denuvo guideA class of protection (and corresponding bypass research) that operates at the virtualization layer, beneath the operating system. It intercepts integrity checks and protection logic at ring -1, where traditional patching cannot reach. Notable because it is among the most technically demanding categories to analyze.
Read the full Hypervisor guideAccount- and launcher-based entitlement systems tied to digital storefronts.
Steam's DRM ties game launches to an authenticated Steam account and licensed entitlement. The older CEG component could bind per-user executables and perform integrity checks. Offline mode is available after prior activation, with periodic revalidation by the client.
A cross-platform backend providing authentication, entitlement verification, matchmaking, and related services. Games on the Epic Games Store may use EOS or the launcher to confirm account ownership at launch. Offline behavior depends on publisher configuration.
An account-based launcher that validates ownership and may require online connectivity at first launch or continuously, depending on the title. It also provides updates, overlays, and cloud saves. Enforcement policies vary by game.
The EA App handles account authentication and entitlement checks for game launches and updates. EA Anti-Cheat is a kernel-mode component used by select titles to enforce process integrity and detect cheating. Offline access requirements are game-dependent.
Rockstar's launcher and Social Club services authenticate users and verify licenses prior to starting supported games. They integrate cloud saves, updates, and online features. Offline play typically requires prior sign-in and is governed by title-specific policies.
GOG distributes games without mandatory DRM; the Galaxy client is optional. Galaxy offers updates, achievements, and cloud saves without enforcing online checks for launch. Installers and executables are designed to function offline.
Uses Windows Store licensing and encryption to bind apps to a Microsoft account or device. UWP packages are signed and run in a sandbox, with entitlement checks performed by the Store infrastructure. Some titles also rely on Xbox services for additional authentication.
Runtime monitors — often kernel-mode — that enforce integrity in multiplayer environments.
An anti-cheat system using kernel- and user-mode components to monitor the game environment and enforce integrity. It combines signature-based detection with heuristic methods and blocks known cheat interfaces. Enforcement actions are applied per game at publisher discretion.
A widely used anti-cheat solution employing a kernel-mode service and protected game processes. It performs integrity verification, behavioral analysis, and driver validation to detect unauthorized tools. Sensitivity and enforcement levels are configured per title.
Generic packers, virtualizers and obfuscators applied to critical routines.
A code virtualization and obfuscation system that converts selected routines into custom bytecode executed by a virtual machine. It layers anti-debugging, anti-dumping, and integrity checks to hinder analysis. Protection strength can introduce runtime overhead depending on scope.
A Windows packer/obfuscator focused on anti-reverse-engineering with virtualization, mutation, and anti-VM/anti-debug techniques. Often used to shield loaders or critical code sections. Aggressive protections may affect compatibility with certain tools or environments.
An application protection suite providing obfuscation, white-box cryptography, and runtime self-protection (RASP). It inserts tamper-detection guards and integrity checks that can trigger defensive responses. Commonly layered atop platform DRM in PC titles.
Historical schemes from the disc and early-online era, largely retired today.
A disc-based and online-activation DRM widely used in the 2000s. It employed activation limits, hardware fingerprinting, and blacklisting of emulation tools. Deactivation server and compatibility concerns later affected long-term usability.
A driver-level disc protection system that installed low-level components to verify physical media. It featured strong anti-emulation and integrity checks. Over time it became associated with system compatibility issues and fell out of use.
A disc-based protection that relied on custom physical sectors and later evolved into online activation (Tages/Solidshield). It used hardware fingerprinting with limited activations. Functionality sometimes varied with optical drive compatibility and service availability.
