Darvond: You must be new here, and to this. GOG's entire modus operandi is offline installers, with GOG Galaxy existing as a convenience feature. You download them anywhere, take them anywhere.
When I say offline installers, I mean offline. You download them, they sit on a tape drive somewhere for 50 years and they'll still work, that kind of offline.
Parts of your lengthy maunder I am unable to parse due to how you keep using strange syntaxes and phrasing. I will be skipping or otherwise trying to ask a simple question to clarify.
On the matter of those assets (again), specifically what games are you seeking from the XP era that GOG doesn't have? Have you checked in the community wishlist?
Because what you're asking for has been entirely outmoded by modern systems. Did you even check the link I posted?
Not new here exactly but you can check my profile creation date 2013. But I've been doing this since the 80s or a bit prior to be exact. I'm well aware of what offline installers are and what GOG offline installers as I've been using DOS for quite some time now. Now the offline installers from GOG I extract them in Windows and convert them so that it can be run in Pure DOS. The ones that don't I have the actual Floppy Disks or CDs from the original game box from my enormous software collection.
As for tape drives I got a bunch of those from archiving during the BBS days and they aren't very reliable when retrieving data as sometimes the tape snips. Even modern tape drives I wouldn't consider that a viable option today for backup storage.
Using optical discs are a bit more reliable for long term storage combined with external USB powered hard drives. Currently I have several CDs that housed pretty much all the earliest collection of DOS games before the transition to CD based storage for games.
But getting back to your point because you were unclear or just not used to tech speak I'll have to layman it down further as I thought it was already layman enough but I was mistaken.
Again this request is not specifically for me but if there are any Windows 2000 or XP specific titles that have not yet become available on GOG's store "those" titles would be nice for GOG to acquire from Steam to be made DRM free if they already aren't able to run without a CD check or needing to be logged into Steam. Then any residual XP users from Steam could if they had a GOG account download the program DRM free. If this case of Steam really killing off XP accessibility is permanent in 2019 as the Op is worrying about then this is one way to solve it.
I hope that was clearer.
I wasn't intentionally trying to confuse or numb you with strange syntaxes or unfamiliar jargon.
The link you are referring to I assume is:
https://discordapp.com/
Discord -- For All-in-one voice and text chat for gamers that's free, secure, and works on both your desktop and phone. Stop paying for TeamSpeak servers and hassling with Skype. Simplify your life.
No I haven't used this program but I went ahead and downloaded it and may test this later. Are you recommending this for people to use to substitute for any chat/speech communication on XP? I'm not a heavy gamer anymore these days. The last real hard core gaming by me was done during the Starcraft 1 days and before that Warcraft 2 Battle.NET. Eating soup out of cans and then recycling them by pissing in them because I was too lazy to go to the bathroom and needed to join the next game. 24 hours non stop game after game. Yeah that was some serious gaming addiction that I had back in the day. But certainly those old Blizzard titles would have been nice if they could have been run on GOG Galaxy or a specialized GOG Galaxy XP only gaming server. I'm certain Battle.NET was probably the most popular gaming server at one point during the 90s and early 2000s. This was also before online console gaming that started taking off with the PS3.
Today I mainly make legacy operating systems run on modern machines from legacy DOS all the way to the latest Windows 10 all on one system. XP running on an i9-9900K octacore Coffee Lake Z370 is a more recent example of what has been achieved by me.
However I'm about to step back into gaming probably within this month as all these doors are slamming closed on XP permanently and it's time to get those paid for keys I hoarded for Steam that I never had time to claim and make them work before it's long gone forever. I might possibly do some Youtube videos later on to demonstrate some of these if I have time as it seems XP legacy gaming seems to be priming itself for a resurgence.
I guess that's what happens when an OS gets close to 20 years old. People get nostalgic...