Still the best and most addictive online FPS of all time!
Most people hate on Counter Strike: Source because they're used to the original Counter Strike and hate the graphical update and changes made. I however think all the changes made were for the better and is just more fun than the original because of the graphical updates. The maps are more rich and the movement feels more natural and aiming for the areas on the models is much better because with the better graphics you can actually tell what part is what, instead of a mess of polygons from the original Coutner Strike. The sound effects have also improved from the original CS and yey it now has granade physics :O lol.
Counter Strike and Source are such great games infact that they're still the most popular in professional tournaments with people from all over the world taking the seriously and playing them for a living. Source is obviously based on the original game which was a Half-Life mod with a simple idea... Counter terrorists vs terrorists where theres two different gameplay modes. CS maps are the counter terrorists trying to save the hostages and the DE maps are the Terrorists trying to plant the bomb and make it go Bang before the Counter Terrorists can defuse.
You have a selection of 4 models and lots of weapons which you can buy before each round starts, this was revolutionary when it came out and still hasn't been copied today or put to such great use as CS did it. As you can see the gameplay is simple but what really sets it apart is the use of hitboxes which really makes you have to aim because Headshots are usually 1 hit kills. It's hard to explain why it's so good but go and Play it and see how less is more and how it just works so well.
Another great feature of CS is the fantastic maps it has which again are very simple but so well balanced and laid out. The support from the modding and mapping community makes for some amaizng community made maps which is where such famous maps as de_dust and de_dust 2 came from. So really theres not just a select of official maps but enless amounts of community made ones which are into the tens of thousands in terms of how many have been made so far so you'll never play them all. Also the game is so customizeable like being able to change the skins of the guns and character models which just give that extra feeling of making the game your own which is great. There are also modded servers based on Warcraft 3 and Zombie coop games which offer a great distraction from the main game.
Counter Strike and Source are the most succesful Online FPS games of all time and to understand why they're so good, you really have to just play them and they're very cheap on Steam these days. Theres over 150,000k people playing both these games at anyone time during peak hours with the server count going into 40,000+ at peak time too. These games will always be so popular so don't worry about them ever dying and pick up the best online FPS games ever made!