If I remember correctly, it was Commandos: Beyond the Call of Duty, and right before that, Commandos: Behind Enemy Lines. That was about a month and a half ago. I didn't end up playing Beyond the Call of Duty, though, because by the time I got to the last level of Behind Enemy Lines, I was ready to take a break from the awesomely fun frustration.

Depends on what you mean by old. The ones that I remember:

Icewind Dale/Icewind Dale II/Baldur's Gate 2 about 1.5 years ago from my CDs.
The Dig/Indiana Jones and the Last Crusade from STEAM about 2 years ago.
King's Quest/Space Quest Collections from STEAM about 2 years ago.
Fallout/Fallout 2/Fallout Tactics, STEAM, about 2 years ago.

2004 & earlier I guess. Mainly for the specs (though I think there were a lot of CPU intensive games in 2004). Never gotten into Baldurs Gate but I did enjoy Indiana Jones & the Last Crusade and I keep looking at The Dig, maybe if/when GOG gets Lucasarts I'll take more interest as I dislike having to run steam to run games on my netbook.

I recently installed Ripper and Spycraft: The Great Game.

I believe LucasArts games don't really use STEAM as DRM, STEAM simply provides you the download. I know King's Quest and Space Quest collections do that, I can run them without running steam at all. Not sure about Lucas old ones.

Oh, I also installed Diablo 2 about 2.5 years ago :P

welll, let's see.

- X3: the threat
- freelancer

Wizardry 8. Not a bad game, no time restraints, and a fairly large world with a few retro dungeons.

Tried Wizardry 7 (Gold), for the epic Gorrors battles, but have to install on a 32bit system first, and transfer.

With Alpha Centauri (Gog game) taking up so much time with all of its detail, its likely the Wizardry titles will sit idle for a time :-)

Well I could mention Crusader, but that was released on GOG not long after.

I always liked the look of the Crusader games, and have a couple sitting, unopened, because of their DRM schemes, along with some Silent Hunter games.

Became careful of what I bought after that :-) Saw Crusader on here, but not listed as Win7/64 compatible but might 'play' with it in the future.

I tried installing Daggerfall not long back. Last year sometime.

Before that it was Black and White, which isn't that old really, but it's also not, *new*, so I'm throwing it in! :)

Silent Hunter 4 (Wolves of the Pacific) was very good but you do spend a hell of a lot of time just moving.... 5 is the one with the dodgy UbiDRM. Crusader runs in DOSbox & AFAIK there's no problems running that on win 7 x64

Crusader (as in No Regret + No Remorse) has no DRM, save for arguably a disc check. DOSbox works with Windows 7 64, and as such so does Crusader No Remorse.

Necrodome.

Star Wars Dark Forces 1 and 2 (Jedi Knight)

All the X-Com games, a few months ago.