S4 League is a third-person shooter multiplayer game. S4 League plays similarly to other online Korean and now English games of its nature, such as GunZ and eXteel; however it is somewhat unusual in its particular emphasis on teamwork, and sports, rather than violence aligned perspectives. It is a third person shooter, with three modes of play: Touchdown, Deathmatch, and Chaser

Touchdown operates similarly to Capture the Flag, in which two goals are set up on either side of a field. A "Fumbi", which represents a ball of sorts, is placed in the middle. A player must grab the Fumbi and take it to the opposite team's goal in order to score a Touchdown. The Fumbi also quickly drains the SP of the player holding it, which can result in the use of skills being disabled until the Fumbi is dropped or the character dies. Passing through a gate of falling off the map will "reset" the Fumbi, which returns it to the starting position.

Chaser Mode is an experience similar to survival, as if the survivors are being "hunted". One player is chosen randomly to become the Chaser, who is indicated by a Grim Reaper hovering near him. The Chasers objective is to dominate the survivors in the given time, or survive if the survivors are too powerful, which is unlikely since the Chaser receives a huge attack and defense bonus, and reload time is shortened. The Chaser is also limited, since the Grim Reaper is blocking part of the visible area, and the survivors are outlined in red and black from his/her eyes. The players who are not chosen as the Chaser are the survivors. Their objective is to either kill the Chaser or survive in the time given. When enough attack power is implied on the Chaser,measured by a bar, the player receives 2 bonus points. While in a round, the player who is in 1st place and is not the Chaser is the "Target". The Target will always have visible cross-hairs which can be seen as long as the target is in your viewing screen. If the Target is killed, the Chaser receives double points and the next player on the ranking list is the Target as long as he/she's alive. There are also damage rankings, which are awarded to players if they either harm the Chaser enough with ranged or close-ranged weapons. Damage rankings give off bonus EXP.