Mech Deck is a light skirmish game in which players build customizable Mechs and deploy them on a modular battlefield. These Mechs are made up of five plastic parts that fit together to form the players piece in the game. Each part of the Mech has unique stats and abilities displayed on their corresponding Mech cards. When the player takes damage, a part of their Mech is removed and its card flipped over.
Deck cards are drawn each turn giving extra abilities and maneuvers for the players to use. Action cards are played on the player's turn and reaction cards are played on the opponent's turn.