In case you're unfamiliar, Counter-Strike is an entirely multiplayer experience. You can play offline against AI bots, but these are still merely simulating what it's like to play online, rather than really giving you a single-player game. The good news is that this is as good as online team-based shooters get. In the traditional game mode, there are two types of matches and two tiers of play. Casual level is for newer players and removes aspects like friendly fire and the need to purchase armor and ancillary items each round (more on that in a second). Ranked level is the original style of CS, with all the "realism" settings enabled, but it also features a comprehensive skill-based ranking system to try to balance teams and place good players with other good players.
