Doom Builder 64 is a custom fork of Doom Builder 2 by CodeImp made to support mapping for DOOM 64 on N64 and on PC (EX/Steam/GOG), originally developed by Samuel "Kaiser" Villarreal and now maintained by the_kovic.
Doom Builder 64 doesn't ship a traditional installer. To start using Doom Builder 64, simply download a .zip file containing the binaries from the Releases page, extract it and launch Builder.exe.
If you're updating an existing installation, it is recommended it you delete your old Doom Builder 64 folder entirely and replace its contents with the new version.
Doom Builder 64 requires Microsoft .NET Framework 3.5 installed. This should be already installed on the vast majority of computers. If your computer is an exception, consult Microsoft's pages on how to install.
Currently, only building on Windows is tested and officially supported. To build Doom Builder 64, use the Visual Studio solution file provided in the repository.
If you have any problems or suggestions, use the Issues or Pull Requests pages in this repository or join the DOOM 64 Discord server.