FireLine: Merge Defense

FireLine: Merge Defense combines clicking, cannon upgrades, and defensive shooting into one focused arcade challenge. Your position is set against waves of cubes, while stronger threats and deadly bosses add pressure as the action continues. The main strategy is deciding how to build a more useful arsenal before the incoming shapes become too powerful.

Guns can be unlocked and combined to improve your cannon. That merge mechanic gives every purchase or placement a tactical purpose, because strengthening your firepower helps protect the defensive position. Watch the threats approaching and use the mouse to manage your weapons while the cubes push forward.

Use the mouse to interact with the defense and its guns.

Unlock guns as they become available to your arsenal.

Combine guns to upgrade the cannon and improve its fighting ability.

Defend against waves of cubes and deal with the powerful bosses.