In response to post #50733777. #50733937, #50734032, #50752942 are all replies on the same post. Duly noted. So I suppose that does constitute a bit more than merely 'getting them to work on Win10'. Not that the 4GB patch is especially difficult for Steam versions, it nevertheless is nice that GOG removed that extra bit of hassle. Had I not sweated blood and cried bitter tears trying to get FO3/F:NV to work consistently on my rig with numerous mods, workarounds and utilities, I would have gone straight to GOG.