Custom Elements allow you to extend Elements by running your own authoritative code inside the platform.
They are best thought of as server-side plugins.
What a Custom Element Is #
A Custom Element:
- is a server-side application
- runs in a trusted environment
- can access Elements data and systems
- cannot be modified by players
When You Might Use a Custom Element #
Custom Elements are a good fit when:
- you want to avoid running your own backend
- logic is tightly coupled to Elements features
- functionality should be reusable across games
- third parties need to integrate cleanly
Examples include:
- receipt validation
- promotional reward systems
- scheduled content rotation
- anti‑fraud or validation logic
How Custom Elements Fit Into the System #
Custom Elements participate in the same authoritative flows as external servers:
From the client’s perspective, nothing changes — authority remains on the server.
What This Means for Developers #
If you’re new to backend development:
- Custom Elements can significantly reduce the amount of infrastructure you need
- You still write server‑style code, but Elements handles the environment
If you already run a backend:
- Custom Elements allow you to move shared or reusable logic closer to the data
Both approaches are fully supported.