support melee operators. Players must place operators on the correct tiles to prevent the enemy from infiltrating the player's base. Once in place, an operator's skills can be activated after a time for special effects, or they can be withdrawn for redeployment after a delay.

Because there is often a limited number of viable solutions, especially at high difficulties, Arknights has also been described as a puzzle game. The gameplay normally does not require quick reaction times (the game is pauseable,