An interesting article based on a GDC poll. https://www.mcvuk.com/just-6-of-devs-think-valve-justifies-its-30-steam-cut-says-new-gdc-poll/
Announcing Epic MegaGrants, a $100,000,000 initiative for #UE4 games, media and entertainment, enterprise, education, and tools, including open-source work for the 3D graphics community. https://t.co/Tya0miUbrA#UnrealGDCpic.twitter.com/R1ZO1tbZU4— Unreal Engine (@UnrealEngine) March 20, 2019
This is only the tip of the iceberg... The volume of tools and services going into UE and the whole Epic platform is, well unreal.