- Engage in Heart-Pounding Firefights: Immerse yourself in a gripping world where every corner is teeming with hordes of ravenous zombies. Arm yourself to the teeth and prepare for relentless, action-packed shootouts.

- Explore a Post-Apocalyptic World: Navigate through desolate streets, abandoned buildings, and eerie landscapes as you unravel the mystery behind the zombie outbreak. Every step could lead to danger or valuable resources for your survival.

- Precision Shooting and Brutal Takedowns: Hone your marksmanship skills to perfection. Take down zombies with headshots for maximum impact or go for the limbs to cripple their advance. Execute brutal takedowns up close for extra thrill!

- Build Your Arsenal of Weapons: Collect and upgrade an arsenal of powerful firearms, and explosives weapons. Choose the right tools for the job and customize your loadout for each mission. The undead won't know what hit them!

- Features:

- Immersive 3D Graphics: Stunning visuals bring the zombie-infested world to life.
- Challenging Missions: Face a variety of challenges and objectives to test your survival skills.
- Epic Battles: Confront massive zombie that will test your combat prowess.

- Download Now and Face the Zombie Menace!

Sure, here's a potential set of ASO keywords and description for your game on Google Play:

Keywords:
- Call of Shooter
- Zombie Survivor
- Crossfire Aim
- Free Shooting Game
- Action-packed FPS
- Apocalypse Warfare
- Undead Combat
- Mobile Battle Royale
- Survival Shooter
- Multiplayer Gun Game

Immerse yourself in the intense world of "Call of Shooter: Zombie Survivor," a thrilling crossfire aim game that brings the ultimate free shooting experience to your mobile device. Battle through waves of undead in this action-packed FPS, engage in apocalypse warfare, and become the ultimate survivor in the mobile battle royale.

🧟‍♂️ Survive the Zombie Apocalypse: Face off against hordes of relentless zombies as you navigate through challenging levels filled with undead enemies.

🔫 Crossfire Aim: Sharpen your shooting skills and aim for precision in intense crossfire battles. Take down zombies with strategic shots and become the ultimate marksman.

🆓 Free Shooting Game: Enjoy the excitement of a high-quality shooting game without any cost. Experience the thrill of survival without breaking the bank.

🌐 Action-Packed FPS: Immerse yourself in a fast-paced, action-packed FPS gameplay that will keep you on the edge of your seat.

Download "Call of Shooter: Zombie Survivor" now and prove your skills in this adrenaline-fueled free shooting game! Can you survive the apocalypse and emerge as the ultimate survivor in the crossfire battle?