FireLine: Merge Defense

Enter the fast-paced world of FireLine: Merge Defense, where strategy and quick reflexes decide every battle. Collect a range of powerful guns, each with its own upgrades and special abilities, then merge them to strengthen your cannon and prepare for tougher challenges ahead.

Defend your tactical position against endless waves of cube enemies and dangerous bosses that become stronger each round. Watch enemy patterns, choose smart upgrades, and place your cannon carefully to maximize damage. Every merged weapon boosts your firepower and opens new ways to survive. As you advance, you’ll face harder foes and need sharper strategy to stay in control.

How to play FireLine: Merge Defense online
Drag and drop guns to merge and upgrade them. Aim your cannon at incoming enemies, stay alert, and use your improved arsenal to defeat waves and bosses while protecting your base.