The Game of Mathematical Dexterity. This is an Educational math game, done right! Cosmic Chain the Math Game is a new, prize-winning game for Windows PC. Targeting middle-school grades 5-8; add, subtract, multiply, divide, compute negative values, variables, evaluate algebraic expressions! Player's earn awards, achievements, and gameplay status that tracks their performance. This math game is so enjoyable and rewarding that every student will love to learn and excel in mathematics!