In contrast to more conventional forms, specialized rummy variations frequently introduce distinctive rules or themes to appeal to particular audiences or gameplay preferences. Mahjong Rummy is one such variarummy all newtion that blends aspects of the games of rummy and mahjong. Players try to create melds that resemble those in traditional rummy using tiles rather than cards. For players who appreciate the strategic depth of rummy but still prefer the physicality of Mahjong, the addition of tiles gives the game a tactile element. Another specialized variation is Rummikub, a board game that has become very popular with families.