Question Regarding Unreal Engine Licensing for a Game Platform Operator

I have a question regarding Unreal Engine licensing.

From the licensing documentation, I understand that royalties are generally payable when a product developed using Unreal Engine exceeds $1 million USD in lifetime gross revenue.

However, I would like to understand how the licensing terms apply to a game platform operator such as ourselves.

We operate a gaming platform and provide a free SDK to game developers.

Our SDK does not contain any Unreal Engine code and is a general-purpose SDK that can be used independently of Unreal Engine. We do not develop, publish, or distribute any Unreal Engine-based games or applications ourselves.

Games are developed and distributed entirely by third-party developers. As a platform operator, we receive a revenue share (platform commission) from sales generated through our platform.

In this scenario, could you please clarify the following?

  1. Would a platform operator such as ourselves have any royalty or subscription obligations under the Unreal Engine license?
  2. If so, what conditions would trigger those obligations?
  3. Would the platform commissions (revenue share) we receive be considered revenue attributable to a Royalty Product under the Unreal Engine EULA?
  4. Or are royalty obligations limited to the developers and publishers of Unreal Engine-based games?

If there are any relevant EULA provisions or guidelines that address this scenario, I would appreciate your guidance.

Thank you.