DirectX 10.1 support, or lack thereof
Assassin's Creed for the PC was released with DirectX 10.1 optimizations which enabled better performance for 10.1-compliant video cards, which are currently only made by AMD/ATI. Ubisoft has now patched the game to disable DX10.1 support, and has no announced plans to reinstate it. Several websites have connected this action with the co-marketing agreement between Ubisoft and Nvidia, suggesting that this is a deliberate and corrupt move to cover up Nvidia's weaker performance on 10.1 games. The net result is that consumers are getting ripped off -- not just ATI card owners, but Nvidia buyers as well, because actions like Ubisoft's encourage Nvidia to cheat rather than improve its products.

Good but not Great....
First, the good stuff, great graphics (when my character first rounded the curve overlooking old Jerusalem, I felt butterflies!!! Superbly done guys.) Fight scenes (graphics and action) are also enjoyable- which is the meat and potatoes of what this game is all about. And the storyline is intriguing enough to keep me interested- probably why I originally bought the "director's cut" version. Also, I have Windows Vista Ultimate for my operating system, and it doesn't have any problem with the game.

Now as far as problems with the game, I haven't played it long enough to find all the bugs, but I have some difficulty interpreting the keyboard keys to the console controller buttons (which is an annoyance since the game prompts me to use console controller buttons-I need to read the manual frequently...) Also, I thought that I had saved the game at a certain spot only to find upon reload that I had to start the quest I had almost completed from the beginning. I am learning about the save spots and the locations still as well. I have to be fair and say I haven't fully read the manual, and some of the difficulties I am having may be a result of this. But I do recommend that you get a console controller rather than try to use the keyboard commands- this is really a detractor from the immersion factor....JB

OK...
A few reviewers summed up this game very well. I just wanted to nod my head in agreement...

Excellent Graphics, Nice open ended gameplay, Good voice acting. Play control is not too bad (takes a while to get used to).

Boring, repetitive missions and slow story line. Game gets old after a few hours.

Garbage
Save your money. I have tried to find something positive to say about this game but I can't. This has to be one of the worst games I have played in years (and I play them all). It is unimaginative, repetitive, quickly becomes boring and frustrating after you (and I am not exaggerating) do the same missions 30 times, climb the same towers 50+ times, see the same graphic cutaway 50+ times, save the same person in the crowd 30+ times, etc. Also you are not completely "playing" the game, every 15 minutes or so it cuts away to a poorly written hack story line that you are forced to sit through. The sad part is this had the potential to be something great open world design and fairly good graphics. To be perfectly honest I am bitter and angry that I spent 50 bucks on this garbage of a game. Ubisoft should be embarrassed of this release and fire the designers.

Let Down
Put it this way. Play the game for about an hour and you get the whole thing. Basically you do the same thing over and over and over and over and over again. The coolest thing about this game is climbing buildings and stuff, and that gets very boring after about 20 min. Dang, I had high hopes to. Another thing...the dialog is terrible! Not only does it last FOREVER, you cant skip it! Guess the programmers thought a lot of themselves and their "Cinematic" skills. Stick to the 1's and 0's guys!

Okay sorry...one of the worst games Ive played in a while.