# Create an Amazon GameLift Servers build resource for managed hosting
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When creating a build and uploading your files, you have a couple of options:
+ [Create a build from a file directory](gamelift-build-cli-uploading-upload-build.md). This is the simplest and most commonly used option.
+ [Create a build with files in Amazon Simple Storage Service (Amazon S3)](gamelift-build-cli-uploading-create-build.md). With this option, you can manage your build versions in Amazon S3.

With both methods, Amazon GameLift Servers creates a new build resource with a unique build ID and other metadata. The build starts in the **Initialized** status. After Amazon GameLift Servers acquires the game server files, the build moves to **Ready** status. 

When the build is ready, you can deploy it to a new Amazon GameLift Servers fleet. For more information, see [Create an Amazon GameLift Servers managed EC2 fleet](fleets-creating.md).When Amazon GameLift Servers sets up the new fleet, it downloads the build files to each fleet instance and installs the build files.