Yes. Your first compile may take an hour. It took about an hour and a half to get to a running sample game. You get all the source code for what goes on the target machine. It's here, on Github.[1]
I tried to load the demo used for the UE5 videos, but that's only loadable through the "Epic Games Launcher", which is Windows-only. It's apparently possible to bash that into running under Wine, but I don't have time to make that work right now.
For those who don't know what the deal is with Unreal Engine, there's no charge until you get the first million dollars in revenue. Then they take 5%. The nature of the game industry is that the top 50 or so titles generate almost all the revenue. So, rather than bothering with restrictive licenses for all the little guys, Epic just waits until a successful game starts getting media coverage and shows up on the industry charts, then has their billing department contact the game company.
