# Script reference for Amazon GameLift Servers Realtime
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Use this reference guide to understand the options available when configuring a Realtime script and optionally adding custom game logic for Amazon GameLift Servers Realtime servers. For guidance on how to configure a Realtime script, including required elements, see [Customize an Amazon GameLift Servers Realtime script](realtime-script.md).

**Topics**
+ [Script callbacks for Amazon GameLift Servers Realtime](realtime-script-callbacks.md)
+ [Amazon GameLift Servers Realtime interface](realtime-script-objects.md)