Astrology is a skill that provides passive buffs to various other skills in the game similar to the Agility skill. Modifiers will be unlocked as you level up your mastery in each constellation, and the buff can be upgraded by spending Stardust or Golden Stardust to level up that buff to a maximum level of 5 for Golden Stardust buffs and 8 for Stardust buffs.

This page is up to date (v1.2.2).
This article is about the Astrology skill. For training the skill, see Astrology/Training.


Leveling Astrology involves Studying various Constellations, starting with the Deedree Constellation at level 1. Studying has a base interval of 3 seconds per action. Studying does not cost any resources and provides Astrology experience and Mastery experience for the Constellation after each action.

Each Study action also has a chance to provide   Stardust,   Golden Stardust, or to ( ) discover a Meteorite.

Acquiring Stardust

Training Astrology is the primary way of obtaining   Stardust and the only way to obtain   Golden Stardust. Both are acquired at random while studying constellations, where Stardust and Golden Stardust drops with a 5% and 2% chance per action respectively.

  Stardust can also be obtained in small quantities from   Cutting or   Burning   Magic Logs - see the respective pages for more information.

Both types of Stardust can be obtained in set quantities from   Township Tasks.

The rate at which stardust may be acquired can be increased by:


Each Constellation starts with 6 predetermined Stars (modifiers) that are unlocked by increasing the   Mastery Level of the Constellation. Upgrading Stars that provide standard modifiers costs   Stardust, while upgrading Stars that provide unique modifiers costs   Golden Stardust. The modifier starts at 0, so you need to use the appropriate type of Stardust to benefit from a Stars' modifiers.

The maximum amount of upgrades you can put into a Star modifier is determined by the type of modifier. Normal modifiers can go up to level 8, whereas unique modifiers can only go up to level 5. Each upgrade gives a linear increase to the bonus.

The first upgrade requires 10   Stardust or 50   Golden Stardust. With each upgrade, the cost of   Stardust or   Golden Stardust will double, resulting in the last upgrade of a star costing 1,280   Stardust or 800   Golden Stardust. Each standard modifier requires 2,550   Stardust to max out, while each unique modifier requires 1,550   Golden Stardust to max out. This results in the following total cost by expansion:

Total Cost by Expansion   Stardust   Golden Stardust
Full Version 84,150 51,150
  Throne of the Herald Expansion 30,600 18,600
  Atlas of Discovery Expansion 7,650 4,650
Combined Full Version +   +   122,400 74,400

Despite the wording Unique Modifier, the modifiers do stack with similar types of modifiers, e.g.   Deedree's   Mastery Level 60 star (up to +5% Farming Yield) stacks with the +3% Farming Yield from   Bob's Gloves

Mastery Unlocks

Item Mastery Unlocks

Level Unlock
20 Unlock another Star (Unique Modifier)
40 Unlock another Star (Standard Modifier)
60 Unlock another Star (Unique Modifier)
80 Unlock another Star (Standard Modifier)
99 Unlock another Star (Unique Modifier)

Mastery Pool Checkpoints

Pool % Pool XP Bonus
10% 800,000 xp +5% increased Astrology Mastery XP
25% 2,000,000 xp +5% chance to find Stardust
50% 4,000,000 xp +3% chance to find Golden Stardust
95% 7,600,000 xp +2% chance to find Golden Stardust and Meteorites
Total Mastery Pool XP 8,000,000


The skillcape can be purchased from the store for   1,000,000 after the player reaches   Level 99.
The superior skillcape can be purchased from the store for   10,000,000 after the player reaches   Level 120.

Skillcape Name Requirements Effect
  Astrology Skillcape   Level 99 +1 to base drop quantity of Stardust and Golden Stardust from Astrology
    Superior Astrology Skillcape   Level 120 +2 to base drop quantity of Stardust and Golden Stardust from Astrology
-10% Astrology Interval


The pet can be unlocked by doing any Astrology action.

Pet Name Effect
  Astro +1% chance to locate Golden Stardust in Astrology


The bonuses listed below are the maximum possible.


The Secret Stardust Potion reduces the interval for Study actions.

Secret Stardust Potion
Potion Tier Charges Effect
  I 5 -3% Astrology Interval
  II 10 -5% Astrology Interval
  III 15 -10% Astrology Interval
  IV 25 -15% Astrology Interval

The Star Seeker Potion increases the chance of finding Golden Stardust.

Star Seeker Potion
Potion Tier Charges Effect
    I 15 +1% chance to locate Golden Stardust in Astrology
    II 25 +2% chance to locate Golden Stardust in Astrology
    III 35 +3% chance to locate Golden Stardust in Astrology
    IV 50 +5% chance to locate Golden Stardust in Astrology

Summoning Boosts

This table shows all the   Summoning Familiars and Synergies that provide a bonus to Astrology.

Skill Boosts

This table lists most sources of Astrology-specific modifier boosts. For a list of boosts that apply to all skills, see the Skill Boosts page. This list does not contain boosts provided from   Mastery rewards.