However, if you compare the relevant titles (there're not many of them, namely only the King's Quest series and the Space Quest series), you see that in those cases, GOG's version is actually more expensive, so it makes (financial) sense; probably Activision demanded they be broken down into packs of 2-3 games so they cost more.
Anyway, I didn't say it's a 100% sure sign those games won't come here, but we can't exclude the possibility.

And indeed, with well-worling, popular source ports, you only need certain files, and it doesn't matter wether you get them from GOG or Steam.
Still, I guess many users would buy them here if they were available.

Sorry for not making this clear, but I was only writing about games available both on Steam and GOG (because earlier I wrote that their presence on Steam might mean they'll never be available here).

TQ Gold is well worth even $20; for $5, it's a steal. I've had tons of fun with it.
I can't really say anything about DRM on the game; I have it from GamersGate and it did require some activation (SecuROM I think). If it isn't present on the Impulse version, then you only have to live with Impulse's own system (which, AFAIK, only requires the use of their framework /and an active internet connection/ while you install the game).
I've just checked, and Impulse states if there is extra DRM on a game. Since it doesn't say anything about DRM on Titan Quest, I assume it only requires Impulse Reactor (if that's what their software is called).

I've never used Impulse yet, but from what I've read it only requires an internet connection (and the use of their software) once, to install the game.

Wait, you're telling me he's not? His soul can still be saved?

I could have taken the opportunity to insult the OP's lack of business sense. But it's actually a really good question. What possible barriers are there to getting id on GOG? They self-publish on Steam so even Zenimax (who are very lenient as publishers go) shouldn't be a hurdle.

Bethesda are owned by Zenimax and are on Impulse as well.
But it's probably the same reason Lucasarts aren't here (whatever that is).
It is called Impulse Reactor, but that's stated on game pages as well.

Thanks, now at least I also know.

I can see Bethesda having some issues with the price points. Lucasarts and GOG are too perfect a mix for their continued absence to make any sense.

they should really get those apogee games like commander keen

Yeah but I was disqualified for having a soul

Fucking GOG and their inability to bend the world to their whim... assholes.

you know...I was about to make a thread like this myself

Thinking about the fact that RAGE will be released this year kind of makes me remember all the good times I had with ID's games

Let's hope Zenimax gets on board someday soon

and I don't care what or how but GOG NEEDS to add this comic to the bonus materials when it gets the game

Since this phred has already been necro'd.

I'm not sure that price is much of an issue there, you can currently buy most old iD Games for either $6 or $10 somewhere or less from Steam with DRM, and even then the DRM is practically non-existent.

While you're there, get the Keen pack for $5. You can use episodes 4 and 5 as a base for the "Universe is Toast" mod trilogy, which is really well done and offers closure following the cliffhanger of "Aliens Ate my Babysitter!". The mod trilogy simply swaps sprites and sounds and music, so you have to have the original game .exe's as a base. That means that while Episode 4 is shareware and free for all, you have to have bought Episode 5 to legally use it's .exe as a base for the mod. This keeps the mod maker out of legal trouble for simply making a pre-batched mod that uses Episode 5 resources, technically making it a pirated game.