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Ue4 Prerequisites X64 Info

Document Version: 1.0 Target Platform: Windows x64, Linux x64 Engine Version: UE4.27+ (Latest Mainstream Build) 1. Executive Summary Unreal Engine 4 is a native 64-bit application suite. As of UE4.22, Microsoft has deprecated official support for 32-bit builds. This document outlines the mandatory hardware, operating system, software dependencies, and BIOS/UEFI configurations required to compile, run, and deploy UE4-based projects on the x86-64 (x64) architecture. 2. Operating System & x64 Specifics To utilize the full addressable memory space (>4GB) required for PIE (Play In Editor) and lighting builds, an x64 OS is mandatory.

Comments:

  1. Ivar says:

    © 2026 Green Matrix

    I can imagine it took quite a while to figure it out.

    I’m looking forward to play with the new .net 5/6 build of NDepend. I guess that also took quite some testing to make sure everything was right.

    I understand the reasons to pick .net reactor. The UI is indeed very understandable. There are a few things I don’t like about it but in general it’s a good choice.

    Thanks for sharing your experience.

  2. David Gerding says:

    Nice write-up and much appreciated.

  3. Very good article. I was questioning myself a lot about the use of obfuscators and have also tried out some of the mentioned, but at the company we don’t use one in the end…

    What I am asking myself is when I publish my .net file to singel file, ready to run with an fixed runtime identifer I’ll get sort of binary code.
    At first glance I cannot dissasemble and reconstruct any code from it.
    What do you think, do I still need an obfuscator for this szenario?

    1. > when I publish my .net file to singel file, ready to run with an fixed runtime identifer I’ll get sort of binary code.

      Do you mean that you are using .NET Ahead Of Time compilation (AOT)? as explained here:
      https://blog.ndepend.com/net-native-aot-explained/

      In that case the code is much less decompilable (since there is no more IL Intermediate Language code). But a motivated hacker can still decompile it and see how the code works. However Obfuscator presented here are not concerned with this scenario.

  4. OK. After some thinking and updating my ILSpy to the latest version I found out that ILpy can diassemble and show all sources of an “publish single file” application. (DnSpy can’t by the way…)
    So there IS definitifely still the need to obfuscate….

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