UnrealBuildTool
UnrealBuildTool (UBT) manages the process of building Unreal Engine source code across a variety of build configurations.
Unreal Header Tool
Unreal Header Tool (UHT) is a custom parsing and code-generation tool supporting the UObject system.
Unreal Automation Tool
Unreal Automation Tool is a generic system used to automate processes, including testing and building games.
Unreal Build Pipeline
Reference material for Unreal Engine's build pipeline
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