Merge Dragons Wiki
Merge Dragons Wiki


Merging is the most basic and crucial action done in Merge Dragons!. The game is built in a grid shape and in order to perform a merge, a minimum of 3 identical objects are needed to be placed adjacent to each other.

Some objects, such as brambles, cannot be merged. This is shown by a black or brown outline.

Mind that not every 3 or more adjacent objects will automatically make a merge, only if you actively dragged one object to an additional 2 or more, the merge will occur.

Dimensional Jars[]

Since 2.0.0, merging certain objects in camp or events have a chance to create Dimensional Jars which are available for limited time and can be opened with Dragon Gems. The jar will offer an additional object of the same level as the one which have resulted from the merging itself. If you don't want to spend the gems to open them, any dimensional jars created in camp can be sold for 50 coins. Dimensional jars created in events cannot be sold.

Verifying a merge[]

Sometimes, when you shift objects around too fast, unexpected things happen: accidental merges or not merging the correct number of objects.

Note that this is how the shifting of objects via dragging works. When the object is being moved to a new place, it eases into/tends to the new position. That is, it moves slower and slower to the new position. This, of course, makes the movement of objects much more fluid. But that is also a source of unwanted merges when you are doing it too fast.

To verify a merge, do not let go of the object yet. The other identical objects will also be moving back and forth in the direction of the object you are holding, but that may be unreliable. Is there a correct number of white square outlines around the other identical objects you want to merge? If you want to merge 5, there should be 5 of them. If there isn't 5 of them, shift the object you are holding onto the neighboring tiles, especially onto another identical object, and then shift it back to the original place where you want the merge to happen. And look again to verify. Repeat if necessary.

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Merge Preferences[]

This feature was introduced in Version 2.2.0. On the Game Settings Box accessible from the World Map, a player is able the change the Merge Preferences. Note that this only applies to merging in Camp!

Require Overlap[]

If this option is turned on, it would be possible to place more than 2 identical objects adjacent to each other without merging. In order to perform a merge in this situation, one of the item must be dragged and dropped on one of the other adjacent items.

Do note that even if this option turned on, If you merge too fast, sometimes the system can accidentally catch only 3 items and not 5. Therefore, when dragging an object to perform a merge of 5, please check that 4 other identical objects are highlighted and moving towards your object.

Allow Chain Reactions[]

If this option is turned off, no chain reaction would occur in camp. This means combo merging won't be possible and accidental merges are nearly impossible(when combined with 'Require Overlap' turned on').

Outcomes of a merge[]

Note that in this section, a merge is assumed to be made of 3 objects.

Merging will typically yield 1 object of the next level. However, there are many merges that create more than just 1 object.

In some cases, additional objects that are not related to the main merge chain will be created.

Some merges will not grant a next level object but rewards or miscellaneous objects.

Dead Land Merging[]

Merging can also assist in healing Dead Land. If one or two objects of the same kind are adjacent to each other and on dead land near healed land, the player may merge them out of the Dead Land and also heal it as a bonus. The healing power required to heal it is ignored.

It is the only way to heal Super Dead Land, other than using Heal Extenders that are adjacent to those. Many of the later Levels has heavy use of the concept of Dead Land Merging.This is also relevant in Event Maps where there are many Dead Land that requires 5,000 Healing Power to heal, and the player may find it easier to heal those through merging.

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Types of Merges[]

3 Objects Merging (3-merge)[]

The most minimal merge requires 3 identical objects to be actively placed adjacent to each other in one movement. The reward for merging 3 objects is 1 object of the next level.

Merge 3 1.png
Merge 3 2.png
Merge 3 3.png

5 Objects Merging (5-merge)[]

The most efficient merging, requiring 5 identical objects actively placed adjacent to each other. This merge is more difficult than the 3-merge as there must be 2 groups of identical objects that are not in direct contact with each other. The reason being is that any group of 3 identical objects will already be combined. The reward for merging 5 objects is 2 objects of the next level, which is a significantly better outcome.

Merge 5 1.png
Merge 5 2.png
Merge 5 3.png
Merge 5 4.png
Merge 5 5.png
Merge 5 6.png
Merge 5 7.png

Push Merge[]

While the fact that when this happens it is always an accident, it is also possible to merge objects by pushing one into a group of identical objects using a miscellaneous item. Since Version 2.2.0, if the option 'Require Overlap' in the Game Settings is toggled on, such accidents can't happen.

Merging Table[]

There is a pattern linking merging X number of identical objects and the Y number of objects of the next tier created, but generally, the way to go is to always merge in multiples of 5.

X-merge 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Y 1 1 2 2 2 3 3 4 4 4 5 5 6 6 6 7 7 8
Ejected X 1 1 1 1
Wasted X 1 1 1 1 1 1 1 1 1
Conversion Ratio 0.33 0.33 0.4 0.33 0.33 0.37 0.3 0.4 0.36 0.36 0.38 0.38 0.4 0.37 0.37 0.38 0.38 0.4

The algorithm goes as follows:

First, the system calculate the number of objects merged=(X).

if X=3 it would return Y=1, Ejected X=0.

if X=4 it would return Y=1 and Ejected X=1.

If X is not 3 or 4, it will divided it by 5, and would check the modulo (fraction):

if it's 0(0/5=0) it would return Y=X/2.5, Ejected X=0

if it's 1(1/5=0.2) it would return Y=(X-1)/2.5, Ejected X=0

if it's 2(2/5=0.4) it would return Y=(X-2)/2.5, Ejected X=1

if it's 3(3/5=0.6) it would return Y=[(X-3)/2.5]+1, Ejected X=0

if it's 4(4/5=0.8) it would return Y=[(X-4)/2.5]+1, Ejected X=0

Chances speaking when merging large amount of objects, there is 20% chance of getting an ejected X as the modulo must be 2.

When an object is ejected in a merge of 4 or various other numbers, it is a new object of the type. This means that it counts toward completing certain goals. When merging idols by 4 you can tap the ejected one for another egg, etc.

Combo Merging[]

It is possible to do combo merges by placing groups of consecutive levels of objects in the same merge chain in a certain pattern.

In order to make a single combo, 3 objects of the same merge chain must be available, and additional 2 identical objects of the next level. If a more complex combo is desired, 2 objects of the next level are required, and so on, capped at 4 levels for passive combo chain(which means once you activate the first object and let the objects merging without dragging new ones for 5 tier and 6 tier etc).

Easy to do with 3 objects merging, nearly impossible with consecutive combo chain of 5 objects merging. In order to make a combo

Combo merges create Loot Orbs containing healing power, which is proportionate to the combo number. One Loot Orb is created per combo, so a combo of 3 will create 2 Loot Orbs. If all the land at the Level/Camp is healed, it will be automatically added as points to the Score.

If on Settings, 'Allow Chain Reactions' is turned off, no combo merge would be possible in the camp.

Setup for a combo of 4 (3-merges) Setup for a combo of 8 (3-merges)
Combo 1.png
Combo 2.png

As can be seen above (Setup for a combo of 8 (3-merges)), the player needs to be quick to sustain the combos. Just after the first object was placed, the 5th level must be dragged quickly as possible to the place where the 2 level 1 ones were, and do the same for 6, 7 and 8.

To make a combo of 8 a bit easier, move the farthest item from the center tile horizontally and then one vertically. (eg. Let's take the above image: As soon as the level 1 items merged to the center, take the uppermost level 5 item and move it diagonally, right+down, not even touching the centermost level 5 item) This way only one item of the following tier of items to be merged need to be moved vs moving the 2 items and taking the chance of missing your chance at the combo.

Setup of a Combo of 2 (5-merges)
Combo 3.png

Math Corner, Efficiency & Wastage[]

As mentioned before, merging 5 objects is more beneficial than merging 3, but it really matters the higher level of the object you want to achieve or that if you seek to only have the final level of the merge chain.

Efficient Method (5-merge priority)[]

Here is the most efficient way(the minimal method) to get a single level 13 life tree, by always merging in 5s, but at times 3s.


Inefficient Method (3-merge only)[]

Here's the most inefficient way(the wastage method) to create a single level 13 life tree, which means always merging 3 objects together:


However, 5-merging everything in the camp may be space-consuming. The moderate method is to merge 13 at a time, which forms 5 objects of next level. The waste is only 4% and not too much things will accumulate in the camp.


The number of Life Flower Sprouts required by the 5-merges-priority method is much lower than required by the 3-merges-only method.

The wastage percent is the number of units that could be saved if the more efficient method had been used. It is calculated by 1- [ (N_efficient / N_inefficient) * 100 ], with N_efficient being the number of base units required for the efficient method and N_inefficient being the number of base units required for the inefficient method.

In fact, since the numbers increase exponentially the higher up the merge chain you want to go, the wastage percent increases quickly as well. The amount of Life Flower Sprouts you'd use in the inefficient method for a level 13 Life Tree-531,441 could be used in the efficient method for a level 15 Life Tree-478,050 and even have leftovers. Refer to the Wastage Graphs here. ---> Merge Chain Tables

Merging Dragons[]

The total number of eggs you have to buy to complete the Merge Chain of that particular Dragon can vary a lot, due to the Nests giving a random number of eggs (between 4 to 7 for Tier 2 Nests), and also if you are willing to spend Gems to duplicate Tier 2 Nests that appear randomly in Dimensional Jars.

Assuming 5-merges whenever possible. To get 1 Level 10 Dragon, you will need 50 Tier 2 Eggs, which come from 8 to 13 Tier 2 Nests (Best to worst case). This requires 20 to 33 Level 4 Dragons, which is equals to 783 to 1300 Tier 1 Eggs.

With every Tier 2 Nests that is duplicated, you save about 125 Tier 1 Eggs. Assuming we are doing 5-merges all the way since we are dealing with Tier 1 Dragons, you would save 208 Tier 1 Eggs if two Dimensional Jars are created. (Refer to this table. Note that the average will be much lesser than 125 Tier 1 Eggs because there will be leftover Tier 1 Dragons because we are doing 5-merges.

Merge Chain Tables[]

There are three ways of merging where you might utilize while playing.

  1. You want to create just one of the max level object in the merge chain. (I.e. a Wonder)
  2. You want to create two of the max level object in the merge chain.
  3. You want to keep creating the max level objects over and over again.

For 1, you would be performing 5-merges whenever you can, but sometimes you will be performing 3-merges because you would require more base units if you merge more than that. Refer to table for merging Minimally for 1 Object.

For 2, it is the same as 1, except that you require more base units. Refer to table for merging Minimally for 2 Objects.

For 3, you will perform 5-merges only. Note that this method is the most space consuming method. Refer to table for 5-Merges-only all the way.

An example of referencing the tables: Using the 5-merge-priority method, two Rainbows will require 12,398,250 Life Flower Sprouts (Minimally for 2 Objects) and the merge-5-all-the-way method will require 14,939,065 Life Flower Sprouts (5-Merges-only all the way) and will result in tons of leftovers (17%). Therefore, the minimal amount of Life Flower Sprouts needed for 2 wonders is 12,398,250 however if you go 5 all the way, it will be 14,939,065 with leftovers.

Monkeyisagirldangit made easy to use spreadsheet that use the info from the tables below, unfortunately that particular link no longer works. There is another spreadsheet available to download or copy into your own Google Drive, but cannot be used directly at the source (could someone confirm whether or not this spreadsheet is the same as the one mentioned before?).

A less useful, but flashier, merge tool is available here: Merge Dragons Table.

Minimally for 1 Object[]

Minimal 1 Object Chart.png

Minimally for 2 Objects[]

Minimal 2 Objects Chart.png

5-Merges-only all the way[]

5ATW Minimal 2 Objects Chart.png


1 Unit Chart.png

Currency Merging Efficiency[]

In short, it is only worth it if you collect the highest possible level of the currency, and especially so given the unique 2-for-5 merging quirk. The numbers below show the potential worth of any level of currency, if you merge them to the highest possible level.

The "Merge Worth Results" column is calculated as the average worth of each coin of that level if one were to merge all of them under the 5ATW merging rule, and tally up the total worth of the higher level coins.

Magic Currency[]

Merging coins into higher tiers proves to be very efficient in the long term. If we go by 5ATW merging, and considering the number of lower level magic coin equivalent of two Tiaras (Worth 50K in total):

Min Amount Worth Merge Worth Results Potential Worth
Tiny Magic Coin 3915 1 50000 + 7500 + 2000 + 15 + 4 = 59519 15.20
Magic Coin - Bronze 1565 4 50000 + 7500 + 2000 + 15 = 59515 38.02
Magic Coin - Silver 625 15 50000 + 7500 + 2000 = 59500 95.20
Magic Coin - Gold 250 50 50000 + 7500 + 2000 = 59500 238
Magic Coin - Spellium 100 175 50000 + 7500 + 2000 = 59500 595
Magic Gem of Blood 40 550 50000 + 7500 + 2000 = 59500 1487.50
Magic Gem of Tears 15 2000 50000 + 7500 = 57500 3833.33
Magic Gem of Fate 5 7500 50000 10000

Stone Bricks[]

The same logic applies to Stone Bricks. If we go by 5ATW merging, and considering the number of lower level Stone Bricks equivalent of two Ogre Stone Monolith (Worth 50K in total):

Min Amount Worth Merge Worth Results Potential Worth
Stone Brick 3915 1 50000 + 8000 + 2500 + 20 + 5 = 60525 15.45
Stone Bricks 1565 5 50000 + 8000 + 2500 + 20 = 60520 38.67
Pile of Stone Bricks 625 20 50000 + 8000 + 2500 = 60500 96.80
Nightstone Brick 250 75 50000 + 8000 + 2500 = 60500 242
Nightstone Bricks 100 250 50000 + 8000 + 2500 = 60500 605
Pile of Nightstone Bricks 40 800 50000 + 8000 + 2500 = 60500 1512.50
Ogre Stone Shards 15 2500 50000 + 8000 + 58000 3866.66
Ogre Stone 5 8000 50000 10000

Life Orbs[]

Merging Life Orbs also proves to be efficient, just like Magic Currency and Stone Bricks. If we go by 5ATW merging, and considering the number of lower level Life Orbs equivalent of two The Life Orb of Heavens (Worth 655360 HP in total):

Min Amount HP Merge HP Results Potential HP
Life Essence 9790 1 655360 + 65536 + 16384 + 64 + 16 + 4 = 737364 75.31
Tiny Life Orb 3915 4 655360 + 65536 + 16384 + 64 + 16 = 737360 188.34
Small Life Orb 1565 16 655360 + 65536 + 16384 + 64 = 737344 471.14
Life Orb 625 64 655360 + 65536 + 16384 = 737280 1179.64
Furious Life Orb 250 256 655360 + 65536 + 16384 = 737280 2949.12
Wondrous Life Orb 100 1024 655360 + 65536 + 16384 = 737280 7372.80
Great Life Orb 40 4086 655360 + 65536 + 16384 = 737280 18432
Giant Life Orb 15 16384 655360 + 65536 = 720896 48059.73
Life Orb of Souls 5 65536 655360 131072