Gameplay
Hidden is played by rounds. Each player selects one of the nine IRIS characters; each character is visually distinct, but does not have differing abilities that affect gameplay. A player may choose to play as two classes: Assault and Support. The main difference between Assault and Support is that Support can replenish teammates' ammo. The player also chooses a main weapon, a side arm, and an item. Each round, a player is selected automatically to be the Hidden, usually based on how much damage they dealt to the Hidden in previous rounds. All the other players play as the IRIS, whose goal is to work as a team to hunt down the Hidden and contain it. After the time limit hits, or either side kills the other, the round will end, and a new Hidden may be selected (depending on who won the round and server settings).
Read more about this topic: The Hidden (video Game)