Hi @Larraz
We launched a SaaS platform doing exactly what you need, I think.
In short, Furioos allows you to stream your 3D applications (like your Unreal Engine applications) and share them as easily as a video on Youtube.
We take care of the creation of virtual machines, the storage of your applications, as well as their scalability.
You only have a few clicks to give anyone access to your Unreal Engine applications.
No GPUs are required, because the calculation of the 3D application is done in our servers!
You will find a short video tutorial here: https://youtu.be/VnNenOajk5U
The beta is free, feel free to test it.
One more thing: we now support the fantastic Pixel Streaming on Furioos 
Don’t hesitate to contact us if you need more information.
Cheers,
The Furioos team