After months of collaboration between Epic Games and Qualcomm, the last major barrier to mainstream multiplayer gaming on Windows 11 Arm devices has finally fallen. Epic has completed a native port of its widely used Easy Anti-Cheat (EAC) software for Windows on Snapdragon processors, a move that will unlock titles like Fortnite on the latest Copilot+ laptops powered by Qualcomm’s Snapdragon X Series.

The announcement, made in March 2025, comes as a long-awaited solution to a stubborn technical problem: kernel-mode anti-cheat components cannot run through x86 emulation and had previously blocked many popular games from launching on Arm-based Windows PCs. Epic’s work, done in conjunction with Qualcomm, provides both a developer-focused SDK update and a concrete path for game studios to enable their EAC-protected titles on the new hardware. Fortnite, one of the world’s most-played games, will serve as the first high-profile test case.

The Road to Arm Gaming: How We Got Here

Windows on Arm has undergone a dramatic transformation in the past two years. At Microsoft Build 2024, the company introduced Copilot+ PCs, a new class of Windows 11 devices built around Qualcomm’s Snapdragon X Elite and X Plus processors. These systems combine a high-performance Oryon CPU, Adreno GPU, and a dedicated NPU, delivering the horsepower needed to run demanding applications. Crucially, Microsoft also unveiled Prism, an overhauled x86/x64-to-Arm emulation engine that dramatically improved compatibility and performance for legacy software.

Developers quickly leaned in. The DirectX team partnered with anti-cheat vendors, and by mid-2024, solutions like BattlEye, Denuvo Anti-Cheat, and Wellbia XIGNCODE3 had already shipped native Arm support. Unity demonstrated its editor running natively on Arm, and Linaro launched WorksOnWoA.com, an open-source database cataloging nearly 1,400 compatible games (over 1,200 offering 30+ FPS at 1080p). Everything suggested Arm gaming was finally ready for prime time—except for one glaring omission: Easy Anti-Cheat, which protects a vast library of titles, including Fortnite, Apex Legends, and Elden Ring.

Why Anti-Cheat Is the Last Big Barrier

Most PC games are compiled for x64, and Prism emulation masks that difference well enough for many applications. Anti-cheat systems, however, operate at the kernel level, embedding drivers and hooks that scan for cheat signatures well below the user-mode surface. These kernel modules must run natively on the CPU architecture; no emulation layer can safely translate such low-level operations. As a result, any game relying on a kernel-mode anti-cheat that had not been ported to Arm simply refused to launch, often displaying cryptic error codes.

Epic’s Easy Anti-Cheat falls squarely into this category. It uses a combination of user-space and kernel-mode components to detect memory manipulation, DLL injection, and other cheating techniques. Without a native Arm64 build of its kernel driver, EAC could not function on Snapdragon laptops, preventing any protected title from running—even if the game itself could execute acceptably under Prism.

This architecture created a chicken-and-egg problem: developers saw no reason to support Arm without a working anti-cheat, and anti-cheat porting required engineering resources and platform maturity. The impasse persisted until Epic and Qualcomm tackled it directly.

What Epic Released—and What Developers Must Do

Epic’s solution is twofold. First, it updated the Easy Anti-Cheat kernel driver and associated user-mode modules to run natively on Windows 11 Arm64. Second, it rolled these components into the Epic Online Services (EOS) SDK, so any game studio can integrate them by following a few straightforward steps:

  • Update the anti-cheat bootstrapper used in the game’s installation to the latest Windows-on-Arm-compatible version.
  • Ship the new Windows-on-Arm EAC client module, or ensure the game launcher can fetch and install it at runtime.
  • Rebuild or repackage the game with the updated EOS SDK that includes the Arm-specific binaries.

For studios using Unreal Engine or Unity, the process is streamlined through Epic’s distribution channels. The updated SDK and sample projects provide the new runtime modules, and Epic’s documentation spells out the integration path. Thurrott.com summarized the guidance concisely: “To make anti-cheat in your game compatible with Windows-on-Arm, you must update the anti-cheat bootstrapper and use the Windows-on-Arm-compatible anti-cheat client module.” This is the actionable step that removes the technical blockade.

Fortnite as the Proving Ground

Epic didn’t just hand over an SDK; it also committed to using Fortnite as a real-world validation vehicle. In its announcement, the company said Fortnite will be an early adopter of the new Arm-compatible EAC, helping to “battle-test” the implementation at scale. Fortnite’s global player base, frequent updates, and competitive multiplayer environment make it an ideal stress test: millions of concurrent players on varied hardware configurations will expose edge cases, performance bottlenecks, and false-positive detection patterns that a lab can’t replicate.

If the Fortnite rollout succeeds, the path becomes smoother for hundreds of other titles already using EAC. Studios will have confidence that the anti-cheat works reliably on Snapdragon laptops, and the learnings from Fortnite will be fed back into the SDK to simplify integration for everyone else. Multiple outlets confirmed that Epic plans to deliver the Fortnite update later in 2025, though an exact release date has not been set.

The Hardware Backdrop: Snapdragon X Series and Copilot+ PCs

The anti-cheat port arrives just as Qualcomm’s Snapdragon X Series—spanning X, X Plus, and X Elite variants—gains traction in the laptop market. These chips feature custom Oryon CPU cores and integrated Adreno GPUs that, coupled with Prism emulation and Microsoft’s Automatic Super Resolution (Auto SR), can run many AAA titles at playable frame rates. Auto SR, introduced in Windows 11 24H2, is the first OS-level AI super resolution technique; it upscales games in real time on Snapdragon X devices without any game-side modifications, boosting both performance and visual fidelity.

Copilot+ laptops from Dell, Lenovo, Samsung, and others incorporate these processors and meet Microsoft’s performance and AI thresholds. The combination of native anti-cheat support and Prism’s improved emulation is what finally makes multiplayer titles feasible. Without the EAC port, even the most powerful Snapdragon laptop would be useless for Fortnite or any other EAC-protected title—users would install the game only to be greeted by an error on launch.

Security, Privacy, and Stability Concerns

Kernel-mode anti-cheat has always been controversial. It runs with the highest system privileges, meaning any vulnerability in the driver could destabilize the OS or open a backdoor for attackers. These concerns aren’t unique to Arm, but the new target raises fresh considerations:

  • Kernel-mode risk surface: Bugs in a kernel driver can cause blue screens or system hangs. On Arm, where hardware and driver ecosystems are still maturing, this risk may be elevated during early rollouts.
  • Compatibility with Windows security features: Windows 11 includes Kernel-mode Hardware-enforced Stack Protection and Memory Integrity (Core Isolation). Community reports on x64 have shown that older EAC builds could conflict with these features, forcing users to choose between security and playing the game. Epic and Qualcomm must ensure the Arm version passes all modern Windows hardening checks.
  • Privacy and telemetry: Deeper system integration means anti-cheat can technically collect more data. While EAC’s privacy policy states it minimizes data collection, the kernel-level access could raise user concerns. Transparent communication about what data is gathered and how it’s used will be critical.
  • False positives: The initial Arm deployment may see increased false-positive detections as the heuristics adapt to a new processor ecosystem. Early Xbox on x64 EAC rollouts saw legitimate software flagged, leading to launch failures and community frustration—similar growing pains are likely on Arm.

Microsoft’s own support forums have documented cases where Easy Anti-Cheat drivers are “incompatible with Memory Integrity,” preventing game launches. The solution should never be to disable security features; rather, Epic must ensure the Arm driver binary is compatible out of the box.

Anti-Cheat Progress Across the Industry

Epic’s move is part of a broader shift. As detailed in the DirectX blog at Build 2024, Microsoft partnered with several anti-cheat vendors to get them on Arm. BattlEye ported its kernel driver to native Arm64 and worked with Microsoft to improve Prism so that games using BattlEye could roll out Arm compatibility with minimal changes. Denuvo and Wellbia XIGNCODE3 also shipped Arm support. The presence of multiple Arm-native anti-cheat solutions creates a healthier ecosystem: no single vendor becomes a bottleneck, and game studios have options regardless of which anti-cheat they use.

BattlEye’s Bastian Suter described the collaboration: “We worked with Microsoft to make improvements to the Prism emulator to enable easy rollout of our solution… We collaborated closely with Qualcomm to come up with a way to add Arm64 support for probably over a year now.” The same pattern—close cooperation between anti-cheat vendors, platform providers, and chipmakers—now extends to Easy Anti-Cheat.

What This Means for Gamers and IT Managers

For everyday users and IT departments considering Arm laptops, the immediate implications are significant but not instant:

  • Initial wave of titles: Fortnite will lead, followed by other EAC-protected games that choose to update. Expect sporadic certification announcements over the coming months.
  • No automatic compatibility: If a studio doesn’t update its bootstrapper and client module, the game will remain blocked on Arm. Installation may succeed, but launch will fail until the developer ships the patch.
  • Keep everything updated: Many EAC issues on x64 were resolved by updating the EAC service, Windows, and drivers in tandem. The same applies on Arm.
  • IT validation: Businesses deploying Copilot+ fleets should test anti-cheat behavior in controlled environments before rolling out gaming titles company-wide, as compatibility hiccups can generate help-desk tickets.

If users encounter EAC-related errors on Arm, the general guidance (without advocating security workarounds) is: check for game and EAC updates via the launcher, ensure Windows 11 and firmware are fully patched, and avoid disabling core isolation or memory integrity unless explicitly directed by the vendor on a test machine. Microsoft’s hardware security features exist to protect the platform; removing them for a game is a stopgap, not a fix.

Limitations, Timing, and Realistic Expectations

The much-touted “Fortnite on Snapdragon laptops” headlines require a dose of reality:

  • Timeline: Epic’s official word is “later this year” for Fortnite’s Arm-compatible EAC rollout. Staggered deployments mean some regions or editions may see the update sooner than others.
  • Not a universal pass: While hundreds of games use EAC, only those whose developers actively adopt the updated SDK will run on Arm. Some studios may choose not to support the platform, especially if their player base remains overwhelmingly x64.
  • Performance gaps: Prism emulation is impressive, and Auto SR helps, but high-end titles will still perform better on x64 laptops with discrete GPUs. An EAC port removes a compatibility lock, not a performance gap.
  • Nintendo Switch 2 rumor: Some secondary reports claim the latest EAC release supports the Nintendo Switch 2. However, no primary source—Epic, Nintendo, or official SDK release notes—confirms this. Until an authoritative statement surfaces, treat Switch 2 support as unverified.

Developer Checklist for Arm Support

For studios planning to ship EAC-protected games on Arm, the integration path is clear:

  1. Download the latest EOS / Easy Anti-Cheat SDK that includes Windows-on-Arm updates.
  2. Replace the anti-cheat bootstrapper in your build pipeline with the Arm-compatible version provided by Epic.
  3. Package the Windows-on-Arm EAC client module alongside your game, or enable launcher-based installation.
  4. Test against Windows 11 security features (Core Isolation, Memory Integrity, stack protections) and verify driver signing and digital certificates for the Arm64 target.
  5. Run broad compatibility tests across representative Snapdragon X Series devices, including both native and Prism-emulated configurations, and collect telemetry before wide release.

The Bigger Picture for Windows on Arm Gaming

Easy Anti-Cheat’s arrival on Arm is more than a technical fix—it’s a market signal. For years, the Windows-on-Arm gaming story was one of compromise: simple apps ran fine, but the most popular multiplayer experiences were off-limits. With EAC joining BattlEye, Denuvo, and others in offering native Arm support, the platform crosses a threshold.

Copilot+ laptops can now be considered as genuine gaming machines, not just productivity tools. Thin-and-light Arm notebooks that sip battery yet handle Fortnite, Rainbow Six Siege, or Elden Ring become viable for millions of players. Developers also benefit: a unified SDK means less platform-specific fragmentation, and Qualcomm’s push to expand Snapdragon X into more device categories (mini PCs, perhaps even desktop add-in cards) broadens the addressable market.

However, this is not the finish line. Performance parity with x64 will require continued investment in GPU drivers, engine optimizations, and game-specific profiles. Kernel anti-cheat still carries inherent privacy and stability risks that vendors must manage transparently. And the ecosystem remains at the mercy of developer inertia—many older games will never see an Arm update.

Epic’s port closes one of the most stubborn gaps in the Arm gaming ecosystem. It removes a hard blocker and paves the way for a wave of compatibility patches. The next chapter depends on how swiftly and broadly developers adopt the update, and how well the Arm platform itself evolves under the workload of tens of millions of Fortnite matches.

Without a kernel-native anti-cheat, Arm gaming was stuck in a demo loop—impressive hardware that couldn’t play the games people actually want. That cage is now unlocked. The first players will pour through the door later this year, and if Fortnite’s massive community has any say, they won’t be the last.