Hey!
Haven't tested the ram usage extensively but I have observed around 2.5gb of ram usage at peak usage.
Only 4gb of ram is probably on the lower side to get it to run. But GPU is usually the critical component.
Well I found this information in settings, Will it be enough?
Device name LAPTOP
Processor 11th Gen Intel(R) Core(TM) i3-1115G4 @ 3.00GHz 3.00 GHz
Installed RAM 4.00 GB (3.78 GB usable)
System type 64-bit operating system, x64-based processor
Pen and touch Pen support
Also I'm getting this error whenever I try to load into the world “Unreal Engine is exiting due to D3D device being lost” no clue what it means but maybe you do?
In general integrated GPU's (like the one on i3-1115G4) will often struggle but i think in this case the low amount of RAM will be the biggest issue since the GPU will share the RAM with the system.
From the error it looks like the GPU driver crash or something similar, probably due to not being able to handle the amount of data.
Have you tried playing any other Unreal based games successfully? I think it will be difficult in general unless they have 2d graphics or are optimized for mobile.