I've made a small game with UDK (Unreal Development Kit, release of December 2011 UDK Beta) and used frontend to package my game;

When I install the game on the user's computer (the OS of the user is Windows XP SP3 32 bit or Windows 7 SP1 32 bit without .NET Framework), the installer program follows the steps below:

  1. install .NET Framework 4 (full installation)
  2. run UE3Redist.exe (this program installs DirectX & Microsoft Visual C++ 2010 Redistributable Package for x86 and x64)
  3. copy the required files

I tried to not install the .NET Framework 4 but it gives this error:

TestGame.exe - .NET Framework Initialization Error
To run this application, you first must install one of the following versions of 
the .NET Framework: v4.0.30319 Contact your application publisher for instructions 
about obtaining the appropriate version of the .NET Framework.
  1. Why is the .NET Framework required?
  2. If I want to build my custom setup for my game, do I need to install the .NET Framework 4? (I read UDK System Requirements.)
  • 3
    \$\begingroup\$ more or less dupe of gamedev.stackexchange.com/questions/21496/… \$\endgroup\$ Commented Jan 4, 2012 at 13:42
  • \$\begingroup\$ But I did not notice. .net framework 4 is required or not.(please help me) \$\endgroup\$
    – shahab
    Commented Jan 5, 2012 at 6:27
  • \$\begingroup\$ Please ask on the UDK forums, you're more likely to get a relevant answer there. This is more of a tools troubleshooting question that I'm not sure is useful or feasibly answered here. As for #1, it's probably because the editor uses WPF or Forms or other .Net components. \$\endgroup\$ Commented Jan 5, 2012 at 10:38

1 Answer 1


I made a game with UDK, and after packed with FrontEnd and installed on other computer, it required things that you have mentioned. I installed all of the things needed and afterwords uninstalled .NET 4, and my game worked just fine. I presume that .NET is required for some system tasks within your game, like saving/loading game data such as checkpoint, scores and similar, which I didn't have in my game. This, of course my not be the case, I will inspect more, but since my game worked, I believe that .NET is something that only UDK installer requires. Will try to pack with some other installers and see what happens.

Also, I made two games with Unity, and it didn't require any external packages.


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