Happy Life GamesMerge Army Guide: Finding the Winning Mix of Swords and Archers
Merge Army is a puzzle disguised as a battle game. Each level shows you an enemy army and gives you a fixed amount of gold. You spend it on swordsmen and archers, merge identical units into stronger ones, and press FIGHT. From that point you're only a spectator. The two armies march, slash and shoot until one side is wiped out.
Since the battle plays itself, all of the skill goes into the setup. The question every level asks is simple: with exactly this much gold, which mix of units wins?
How to play
Your side of the field is a grid of five columns and three rows. The front row faces the enemy. Below the field are three buttons: SWORD, ARCHER and FIGHT!. The first two show the unit price, and your coins appear in the top-left corner.
- Buy: tap SWORD or ARCHER. A new swordsman takes the first free cell from the front row. A new archer takes the first free cell from the back row.
- Merge: drag a unit onto an identical one, meaning the same type and the same level, and they combine into a single unit one level higher.
- Rearrange: drag a unit onto an empty cell to move it, or onto a different unit to swap them.
- Fight: tap FIGHT! when you're ready. You can't change anything once the battle starts.
The bar along the top compares your army's power with the enemy's while you build, then shows remaining health during the fight. You win by defeating every enemy unit. If your army falls instead, the game tells you how close you came. "So close!" means the enemy had less than a third of its health left.
How the battle works
Battles are deterministic. The same two armies always produce the same fight, so a loss tells you something real about your mix and isn't bad luck. Every unit walks toward the nearest enemy and attacks once in range.
- Swordsmen are tough, hit hard, move faster and fight up close.
- Archers have less health and move more slowly, but they shoot from a long way back.
Each level up multiplies a unit's health and damage by a little more than two. That makes a merged unit slightly stronger than the two units that made it put together, and it concentrates all that strength in one body.
Beginner strategy
- Count your purchases. Divide your coins by the unit price. That number, not the coin total, is what you're planning with.
- Merge everything you can. Unmerged twins are almost always weaker. Two swordsmen make a level 2, and four make a level 3.
- Swords in front, archers behind. The buy buttons already place units this way. Swordsmen soak up hits while archers deal damage from safety.
- Look at the enemy shape. One giant, a crowd of small units and a wall of shields each call for a different answer.
Advanced techniques
Don't trust the obvious mix
From level 3, the banner reads "Exact gold — find the winning mix." Levels are built so that a natural, balanced army, mostly swordsmen with some archers, loses. Usually only a few ways of splitting your purchases between the two types win. Treat each level as a search: decide how many archers you'll buy, build that army, and see what happens.
Think in powers of two
Because merging pairs units up, the number of units you buy of one type decides how they combine. Four purchases merge cleanly into one level 3 unit. Three purchases leave a level 2 and a level 1. Five give a level 3 plus a spare level 1. When a split loses narrowly, moving one purchase from one type to the other can change both armies' shapes at once. Often that's exactly the fix.
Finish the veterans' chain
Starting at level 6, some levels begin with units already on your grid, often at a higher level than the shop sells. To use them fully, buy enough of the same type to build a matching unit and merge it in. A lone veteran with nothing to pair with is easy to leave unfinished.
Undo is your test bench
Undo steps back through purchases, merges and moves during setup. Build an army, look at the power bar, then undo and try another split. Remember that the bar is only a rough guide. Range and positioning matter, which is why a mix that looks weaker on paper can still win.
Common mistakes
- Buying on autopilot. Tapping SWORD and ARCHER in a comfortable rhythm is exactly the army the levels are designed to beat.
- Leaving twins unmerged. Check the grid for identical pairs before you fight.
- Repeating a lost fight. The battle is deterministic, so the same army loses the same way. Change the split.
- Ignoring the tip banner. On teaching levels it names the new enemy shape and hints at the answer.
What changes in later levels
Levels 1 and 2 teach merging and buying. Level 3 brings a single giant enemy, level 5 a horde of small units, and level 6 the first veterans. Level 8 is a boss army. Archer nests, armies heavy with archers, appear at level 13, and shield walls of big front-line swordsmen arrive at level 17. Every tenth level is a peak with very few winning splits, followed by an easier level. From level 21, units cost more but arrive at a higher level, and that step repeats every twenty levels.
FAQ
What does the hint do?
It points at the next useful step: a merge, a buy button, or FIGHT! If your current army can no longer reach a winning split, it says "Wrong mix — undo and rethink" and points at undo.
Why did "Stuck? Undo or hint" appear?
You spent coins in a way that rules out every winning split. Undo back to before that purchase.
What does continue do after a loss?
It returns you to the setup phase with the army you fought with and adds bonus coins, so you can strengthen it and try again.
Can I skip a level?
Yes. For a calmer merge puzzle with no battles, try Merge Kingdom, or see our guide to solving logic puzzles for a general approach to search problems like this one.