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Brass.pngBronze.pngPewter.pngSteel.pngMoonSteel.pngThoth's Metal.pngWatermetal.pngMetal Blue.pngOctecsAlloy.png


Alloys are created from different smelted Metals in a Reactory. Some alloys are in turn used to make other alloys.


To start a batch:

  • 5 Charcoal
  • Metal
  • 1 Tree Resin - The type of resin needed depends on the type of alloy you are making.

After working the batch of alloy until it crystallizes, you can take the amount of alloy made, or you can Re-Heat the batch. You often want to re-heat the batch if the amount of alloy made is not satisfactory.

To Re-heating the batch:

Alloy Types and Costs

If you update this list, please also update the table on the Reactory page.

Alloy Needed metals
(for 1x batch)
Resin type Circles
Metallurgy 0
Steel 7 Iron, 1 Zinc, 1 Coal Resin:Towering Palm 9
Metallurgy 1
Brass 7 Copper, 1 Zinc Resin:Stout Palm 10
Metallurgy 2
Bronze 7 Copper, 1 Tin Resin:Fern Palm 11
Metallurgy 3
Pewter 7 Iron, 4 Antimony, 1 Brass Resin:Royal Palm 10
Electrum 7 Gold, 7 Silver Resin:Locust Palm
Metallurgy 4
Sun Steel 7 Steel, 3 Brass, 3 Bronze Resin:Umbrella Palm
Metallurgy 5
Moon Steel 7 Steel, 3 Brass, 3 Pewter Resin:Hawthorn
Metallurgy 6
Water Metal 7 Steel, 4 Moon Steel, 3 Silver Resin:Pratyeka Tree
Metallurgy 7
Thoth's Metal 7 Steel, 4 Moon Steel, 4 Sun Steel Resin:Folded Birch
Metallurgy 8
Metal Blue 7 Steel, 5 Thoth's Metal, 5 Water Metal, 4 Platinum Resin:Cerulean Blue
Metallurgy 9
Octec's Alloy 7 Steel, 5 Thoth's Metal, 5 Water Metal, 4 Cobalt Resin:Oil Palm


The rules governing the behavior of the Reactory are as follows:

  • We define the active circle as the circle that has its center nearest your mouse click, that circle will not move (no matter if you click in overlaps or not).
  • Circles overlapping with the active circle will move towards it like magnets, the nearer they are, the more they will move.
  • If the click results in 2 or more circles congealing completely, the batch crystallizes. The crystallization percentage depends on the number of circles that congeal with the last active circle. So your last click is important: don't just click in the middle of the bright white blob, but try to attract the max number of circles with that last click.
  • Estimate of when 2 circles congeal after a click: if a circle has center to center distance to active circle of less than half the circle radius, they will congeal and crystallization will be the result.


A batch's percentage of crystallization is calculated as follows:

Crystallization = (N - 1) / (T - 1)

   N = number of circles perfectly overlapping after crystallization
   T = total number of circles

This number is shown as an integer, but likely keeps any fractional part for the purposes of calculating the output.

Output is calculated as follows:

Output (debens) =  M * (X - F) / (100% - F)

   M = Total debens of metals put into the batch
   X = Crystallization percentage of the batch
   F = Floor crystallization percentage

The floor percentage is different for each metal, and its calculation method is unclear, but it appears to be determinable as the highest crystallization percentage at which no output is received (example, F=25% for steel, and F=33% for pewter).

Put plainly, the output is exactly 0 at or below the floor crystallization, equal to the sum of the input metals at 100% crystallization, and scales linearly between the two points.

Note that because fractions are kept internally, a larger batch from an upgraded Reactory will not necessarily produce an exact multiple of the output from a normal-sized batch at the same crystallization.


Most guides can be found in the T6 Wiki, and linked below. Here is a quick do and do not guide by wyked: avoiding crystalization

Here is a beginner's guide to practical alloys by Daniels: Practical Beginning Alloys

Here is a YouTube video guide for alloy by Daniels: Video Guide