How high can you climb? Jump to stack blocks and build the biggest tower imaginable! Improve your highscore in endless mode, complete the 36 challenges and unlock all 20 characters! Stack Jump Master, tower building game, 2D arcade game, endless mode, high score, challenges, unlock characters, clicker game, mobile game, stack blocks, jumping game, reflexes, leaderboard, 1 player, 2D, Arcade, tower challenge, character unlock