A game that everyone must play.
The graphics. Visuals in Assassin's Creed are among the best I've ever seen in a video game. The smallest detail has been captured to bring the Third Crusades to life. The characters' looks and actions move with such fluidity, especially when Altair is running through crowds and scaling large buildings. It's just absolutely stunning walking through a market and seeing all the small textures and lighting effects. The gore doesn't look too bad, not to mention.
Another great aspect of the game is the sound. When you are walking through a crowd, you'll feel that you're actually there because you can hear the smallest sounds and it all sounds lifelike. There are many different sounds for every action you do, and none of them are repeated enough to notice.
Gameplay and controls are probably some of the most innovative on a video game in a long time. You can do so many things from using social stealth to blend in with a group of people or gracefully attack your foes with a sword. There's many things to do, but the controls in the game are easy to master and you can switch from a slow walk to fast sprint with the click of a button.
Like all other games, Assassin's Creed does have some bad sides to it. The AI can be really dumb at times, especially during combat. Your foes will surround you, but only attack you one by one, making it a somewhat easy task to take out hordes of enemies. There's also some graphical errors, mainly clipping. Although there are a few low points to the game, there's too many high points that overcome it and make the game so great!