1. Various weapons and equipment upgrades provide different tactical combinations.
2. Suitable for players of different ages looking for fun and excitement.
3. Rankings and achievement systems provide players with opportunities to compete and share achievements and experiences.
4. Story mode, endless mode, challenge mode and other modes meet the needs of different players.
*Rich alien monsters with different characteristics and behaviors bring different challenges.
*Experience the unique and creative mission adventure gameplay of the picture tube era.
*Pixel-style graphics bring back the pure fun of the early days of gaming.
*Story plot in a science fiction setting.
*Strategy game where you build fortifications and upgrade them to protect your base from enemy attacks.
*The emergence of defenders and enemies of different strengths and weaknesses requires players to carefully plan their strategies.