CMOT70: Journey has quietly slipped from "coming" to released today as well. I bought it- my first ever Epic purchase $4.99 with the Epic $10 discount. Hopefully they didn't mess up the port, I'm going to play it as soon as I'm done with what I'm currently playing.
RickyAndersen: Do you get the installer for Journey?
Can you play it offline once you installed it?
I'm still a few days away from getting to play it. But I just did two things quickly right now that I can confirm- I started the game directly from the .exe and the game starts up without needed the Epic launcher open. I copied the Journey folder to another hard drive in it's entirety and started the game from it's .exe and that also worked. So at this time it does seem like you could just download the game, zip it and make your own stand alone installer.
Of course you will need the Epic launcher for multiplayer and, to me, Journey without multiplayer is not the full experience- so I'll be using the launcher to play anyway. Likewise if it comes to GOG (and I think it will) people will also need Galaxy for multiplayer I'd assume.