Publisher's advertising blurb Nuclear is an exciting strategy game for two players. Each player, in turn, places a particle of radioactive material on a 6 x 6 board. When the number of particles at a location reaches its critical mass, it explodes sending particles to adjacent squares. As the board fills up, a single explosion can cause long chain reactions. The object of the game is to cause the right chain reaction to wipe out all of your opponent's pieces. Nuclear is a game of skill, fast decisions, and quick reversals, providing fun for many hours.