Build towers to defend against waves of enemies. Customize defenses with various tower types. Upgrade towers for increased damage and range. Track progress through levels and challenges. Unlock new tower designs and abilities.
Solve math equations to earn points and increase difficulty. Track progress with a speed bonus multiplier. Access Practice mode for timed or untimed equation solving. Compete on the leaderboard without requiring an account.
Command starships to defend Earth from aliens. Upgrade weapons and unlock new abilities. Face boss battles in 10 chapters. Use touch controls for tower defense. Adjust difficulty based on skill. Strategically apply buffs during missions.
