Stack Builder is a clean arcade timing game focused on precision placement and gradual tension. Each new block moves side to side above the tower, and the player taps at the right moment to drop it onto the stack. Perfectly aligned drops keep the tower wide and reward stronger score gains, while imperfect overlaps trim the next platform and make later drops harder. The core loop is reading the motion rhythm, timing each release, and protecting enough surface area to keep the tower alive for one more layer