UE4是完全免费的，只有当你的产品（游戏或应用）的时，才需要支付5%的版权分成费用。对于个人学习、独立开发者甚至大多数中小型团队来说，这意味着可以零成本使用这款行业顶尖的工具。
For advanced users, Epic Games hosts the complete UE4 source code on GitHub (private but accessible with linked Epic account). This method yields a true offline installer because you compile the engine yourself.
Epic Games does not provide a single UE4_Setup.exe file because the engine, along with its components (starter content, target platform support), can exceed 50–100 GB. unreal engine 4 free download offline installer
Transfer this ZIP file to your offline machine using a USB drive. Step 3: Run the Built-in Offline Setup Extract the ZIP file on your offline computer. Open the extracted folder.
在深入操作步骤之前，我们有必要先了解一下为什么 UE4 值得你花费精力去部署。 Transfer this ZIP file to your offline machine
icon next to "Engine Versions" and select the specific version of UE4 you need (e.g., 4.27.2). Creating a "Portable" or Manual Offline Setup While Epic doesn't provide a single
Educators setting up game development labs across multiple computers cannot rely on downloading the engine individually on every machine. along with its components (starter content
: Install UE4 on a computer with internet, then copy the engine folder (typically found in C:\Program Files\Epic Games\UE_4.X ) to an external drive. You can run the editor directly from the folder on another computer via Engine\Binaries\Win64\UE4Editor.exe without the launcher.