From this week's promo titles, my pesonal recommendation is Divine Divinity.
This game is a very atmospheric hack'n'slash RPG, complete with a good, very enjoyable soundtrack. While it bears all the trademarks of its kind (kill monsters, collect and sell/keep loot, gain experience, rinse and repeat), it is somewhat unique in its genre, as the three playable characters are only different at the start; after that, you can pick any skill from the tree of any path. Thus, if you want to build a giant sword-wileding, heavily armored mage or a lightning-hurling berserker warrior, now's your chance ;-).
The learning curve itself is not very steep, but you'd better be on the lookout, for even the first enemies you encounter can be deadly due to your lack of good equipment and skills. Also, the first dungeon can get very boring, very quick, but it's only a few levels, and after that, you can move out into the REAL word of Divinity.
As an "extra", the game has some good, light-hearted, smile-inducing humour, which is a really nice touch.
All in all, Divine Divinity is a thoroughly enjoyable game, which is quite recommended to ANYONE who likes ARPGs in general.

Wouldn't it make more sense to just post these as reviews? That way, they are available at all times.

Well, I don't know about you, but I don't feel they are proper reviews (if you check my real reviews, for Capitalism Plus and Empire Earth, you'll see why). Instead, they are just "promotional texts" for promo games.

Nice whoring there.
And how are these any less "promotional text" like?

I don't feel I'm "whoring" in my reviews; sure, I tell why I personally enjoyed the game in question, but there, I also outline why it can be a not-so-good decision for others. Also, here, I only mention a few points, and don't go in depth.
Anyway, as long as my writings here don't annoy/bother many users, I'll pop in from time to time to promote a particular game or two (and encourage others who feel like doing so to write about their personal recommendations), and I will NOT post such descriptions as reviews.

Feel free. I am just trying to actually have people who give a crap about what others think to see these. But if you feel that posting your "not-reviews" in a place where nobody will look (because honestly, nobody who actually HAS a problem looks at the forums, as the countless "I want this" threads will attest), feel free.

That's OK, and I decided to make this thread because I *really* only intend them as suggestions for people who consider buying promo games. Maybe I'll expand upon these and then post them as reviews.
(However, it'd be nice to know if this thread does any good; if you're right and no one reads them to get an incentive to buy a specific game, I won't bother writing them.)

Arx Fatalis, while being very buggy, is a great RPG for fans of the genre and has plenty of things to do to keep you glued to your chair.
Pros:
-Unique setting.
-Interaction with the environments at that age.
-Decent graphics.
-Unique spell system.
Cons:
-Combat is kind of dull.
-Ranged is horrible.
-Recycled monsters.

Arx Fatalis is as close to Ultima Underworld 1&2 than you can get. Totally underrated game. 5 bucks is beyond a steal.

I'm only resurrecting this topic because now I'm in need of advice.
I've been considering getting SC: European Theater while it's offered in a promo, but I've read it lacks a good AI. Is that true?
If so, I'll get CM: Beyond Overlord instead.
EDIT
Nevermind, I ended up not getting it this time. If there will be a chirstmas promo, and it will be featured in that, I'll get it then, or, if I feel the need to play a non-Hearts of Iron WW2 grand strategy, even $10 is a really good price.