About Merge Defense: Army Behind the Wall

Merge Defense: Army Behind the Wall puts your squad of shooters at the bottom of the screen while waves of monsters descend from above. The central challenge is simple and relentless: keep the wall standing. Archers and mages form your defensive line, and the only path to a stronger army runs through merging — two identical warriors combine into one more powerful fighter. Gold flows from every enemy defeated, and both your army and your accumulated gold carry forward as you travel from world to world: swamp, ice, desert, mushroom forest, and beyond. A boss waits at the end of each world.

How to Play Merge Defense: Army Behind the Wall: Buy, Merge, and Survive Each Wave

Every run begins with gold and a wall to protect. Spend that gold on warriors, position them behind the wall, and merge pairs of identical fighters to build a stronger force — merging is the only way the army grows in power. Once the wave starts, your army fires automatically and earns gold for each enemy it drops.

Archers and Mages

• Archers: hit one enemy at a time
• Mages: hit several enemies at once

Wave and World Progression

• Press Start to launch a wave; the army shoots on its own and earns gold for enemies defeated.
• After surviving a wave, spend the gold on new warriors and keep merging.
• A boss appears at the end of each world; defeat it to move on.
• Your army and gold carry over between worlds.
• Gold can also be spent on magic and a stronger wall.
• If the wall falls, you lose.

Games You Might Like

If the merge-and-defend loop in Merge Defense: Army Behind the Wall appeals to you, Chicken Merge 2 delivers the same wave-survival tension with a feathered army you train and merge against endless enemy rushes. Fortress Merge pairs castle defense with puzzle-driven merging, rewarding strategic upgrades much like positioning archers and mages behind your wall. For a broader take on combining units across eras, Army Evolution: Merge & Tactics lets you merge soldiers from knights and mages all the way to futuristic robots. Merge & Fight keeps the boss-at-the-end-of-each-world structure familiar here, with weapon merging driving your power through escalating waves.

Browse the full Merge games catalog for more titles built around combining units and resources, or explore the wider Strategy games collection for deeper tactical challenges.