The Smash Up Shufflebuilding Deck Building Card Game by Alderac Entertainment Group is a board game designed for 2-4 players aged 12 and above. The game features a unique shufflebuilding mechanic where players construct their decks by adding cards to a central discard pile, adding an element of strategy to gameplay. With a focus on strategic gameplay and challenging opponents, Smash Up is a popular choice for game nights and gatherings with friends.