산수 지구 방위대

Math Earth Defense Force is a mobile math action game where you protect Earth by solving fast-falling math equation UFOs.

Enter the correct answer and press the launch button to take off. Solve addition, subtraction, multiplication, and division problems in succession to build combos, and overcome crises using Fever and special attacks.

Key Features:

- Fast number keypad controls optimized for mobile touch

- Natural repetition practice for addition, subtraction, multiplication, and division

- Retro-style combat featuring boss battles, Fever, and special attacks

- Collect rocket, laser, background, card, and explosion effect skins

- 200 alien companions and various special abilities

- Check your play history with medals, star rewards, and learning reports

- Challenge the World Ranking with weekly and all-time rankings

- Supports Korean, English, Japanese, Chinese, Spanish, Portuguese, German, French, Thai, and Vietnamese

Awaken your math senses with short play sessions, and the longer you play, the more fun you gain in growth and collecting. Prepare the Earth Defense Force rockets and try to stop the invasion with Sansu.