I completely disagree with this, if you just develop your own game format(like me) then that will not be possible(or very very hard) if you develop it right.
So that is not true, but if you use the unreal engine format, then yes it MAY be possible.
Even for the unreal format there seems to be a way of encrypting the .pak file(i believe some games do that too).
BTW. are you 401sly from youtube?

If yes, impressive what you did whith your signalling demo!
And SurvivorSean, i am developing one if you are interrested:
https://www.trainsim.com/vbts/showth...s!Help-needed!
@Edin:
I am afraid you are right that DTG is going the same way like N3V.
@muskokaandtahoe, i cannot agree more with you!