It's actually not lumber yard anymore, it started from that but they've Rewritten most of it. And they literally show you the code and such during their like 2+hr devs videos. It's never going to release but the technology is actually genuinely impressive.

Sadly 16GB just isn't much anymore. Windows alone will happily eat 4, steam sometimes 2 for no reason (usually not but can happen when it's web process leaks) games like icarus claim minimum recommendation is 24.

Which is absolutely insane and developers need to get their shit together but it's just the way things are going.