* ‌Paid Version Link:

- https://play.google.com/store/apps/details?id=com.nmahanloo.csinvaders

* Demo Version:

- Includes the first 12 levels
- Ship size option not available in the demo version

* Game Features:

- 60 game levels (Level 13 to 60 available on the paid version)
- 5 difficulty grades
- 20 unique backgrounds
- 10 music tracks
- Customizable sound and music settings

* Ship Selection (Available on the paid version):

- Two ship sizes available, impacting difficulty level

* Alien Invaders:

- Levels feature 4 rows of invaders, 6 to 8 columns wide
- Rows randomly selected from 10 invader appearance types
- Invaders move horizontally and shoot lasers
- Bullets move straight down or shift horizontally on some levels

* UFO Features:

- Appears in some levels, moving across the top of the screen
- Fires thunder lasers
- UFO and invaders can be invisible on some levels, briefly visible when destroyed (Available on the paid version)

* Brick Shelters:

- 4 shelters per level, each with 25 bricks
- Change color with each level
- Fixed positions or horizontal movement in 3 modes (The first mode of horizontal movements is available on the demo version)
- Destroyable by players, invaders, UFO shots, or invaders reaching their location

* Scorekeeping:

- Top 5 highest scores are stored and updated in the database
- Scores displayed in the main menu

* Game Control:

- Players slide their finger in the lower 40% of the screen to move the ship
- Tap the upper 60% of the screen to shoot
- Optional auto-fire feature available

* Minimum Requirements:

- Runs in landscape mode on Android devices with SDK 21 and above
- This game requires an internet connection