Fortress is a puzzle strategy video game developed by Pipe Dream Interactive and published by Majesco Entertainment for the Game Boy Advance (GBA) in 2001. The game is a twist on classic block-dropping gameplay, where players must build and defend a fortress using different blocks. It features multiple levels and gameplay modes, combining elements of puzzle-solving with strategic defense challenges. Players must strategically place blocks to construct walls and towers, while fending off attacking enemies and preventing their fortress from being destroyed.