Note: For specific older builds like 4.12.0 that are no longer in the launcher, you must download the source code from the Unreal Engine GitHub repository and compile it manually. Unreal Engine Forums System Requirements (UE 4.12)
DirectX 11 or DirectX 12 compatible graphics card. Common Issues & Tips
: Click the "Install" button. You will be prompted to choose an installation directory and accept the end-user license agreement. 🛠️ System Requirements (Legacy)
The most reliable way to obtain UE 4.12 is through the official Epic Games Launcher Open the Launcher : Navigate to the Unreal Engine tab on the left sidebar. Go to Library : Click the tab at the top of the screen. Add Engine Version : Click the yellow "+" button next to "ENGINE VERSIONS". Select 4.12.5
Unreal Engine 4.12 is a legacy version of the engine originally released on June 1, 2016 . While current development typically focuses on Unreal Engine 5
Ensure your Epic Games account is linked to your GitHub account to access the private Unreal Engine GitHub repository .