Plans for future updates:
•Add new eras. Moving to a new era, the base, turret and units of the player change and become stronger (and, obviously, their design is change).
•Add different types of difficulty and challenges.
•Add Infinite mode.
• Improve the background and special effects.
I'm working on an interesting project that makes other games come out rarely, but I'm excited to announce that I'm finally going to make an update! Why so long? Well, I've already written about it above.