An exciting strategy, Idle Mutation Tower Defense invites you to protect a living citadel from endless waves of monsters. Grow new organs, nuclei and unique mutations into the body of your fortress to create powerful bio-weapons. Each ability gained changes the appearance of the tower and adds effective attack or defensive functions. Collect valuable crystals, conduct research and constantly improve the characteristics of your base. Earn game points for repelling enemy attacks, unlock powerful combinations and turn your citadel into an indestructible monster in Idle Mutation Tower Defense.