Cosmic Skeleton Boss – Income, Rarity & How to Get
A Secret pet from the Cosmic collection — listed at $45M/s on the community reference list.
Overview
At $45M/s, Cosmic Skeleton Boss is the 4th strongest earner listed in Cosmic. Across all 90 pets with a confirmed value it ranks 15th. The next one down is La Vacca Saturno Saturnita at $2.2M/s. 3 pets are listed above it in Cosmic, the highest of them Cosmic Dragon at $60M/s. The Secret label covers 15 pets on this site; 10 of them come with a confirmed reference value. The figure is a community reference rather than an official number, and a hatch can roll above or below it.
At a glance
| Biome | Cosmic Endgame |
|---|---|
| Rarity | Secret |
| Income per second | $45M/s |
| Per minute | $2.7B |
| Per hour | $162B |
| Per day | $3.89T |
| Rank in Cosmic | 4 of 8 |
| Rank among Secret pets | 4 of 10 |
| Rank overall | 15 of 90 reference pets |
| Speed needed for Cosmic | 700M |
| Biome guardian | Dragon |
| Collection type | Egg-pool pet |
| Data status | Community reference value |
| Last reviewed | 2026-09-19 |
Income per Second & Value
Reference income
On the community reference value, Cosmic Skeleton Boss is worth $45M/s — about $2.7B a minute, $162B an hour and $3.89T a day if the value holds. Above it in Cosmic sits Cosmic Dragon at $60M/s. The next one down is La Vacca Saturno Saturnita at $2.2M/s.
Two caveats come with any figure of this kind. The roll is a range, so an individual Cosmic Skeleton Boss can read higher or lower than $45M/s; and the number is a community reference kept here, not a price a trade has to meet.
Size and Mutation variance
No verified multiplier for size or mutation exists on this site, so none is printed. Both apply on top of the base value, so treat $45M/s as the base rather than the ceiling. The income calculator multiplies the figure on this page instead of an invented bonus.
Rarity & Availability
Rarity label
Cosmic Skeleton Boss is Secret — one of the ten rarity labels this site uses, band 7 in its own ordering. 10 of the 15 pets carrying it have a confirmed value. A label like this groups pets, and the grouping cuts across collections: the pets sharing it are listed together on the Secret pets page.
Acquisition/source
It is an egg-pool pet, listed in the Cosmic collection — Endgame tier, and it opens at 700M Speed. The collection is described in full on the Cosmic page.
How to Get Cosmic Skeleton Boss
Egg or event source
The egg that produces Cosmic Skeleton Boss is not something this page can name without guessing, so it does not try. Confirmed: the pet sits in the Cosmic egg pool, as listed on the Cosmic table. Hatch odds and drop rates are not published anywhere this site could check, so they are absent by choice rather than by oversight.
Requirements/progression gate
Cosmic opens at 700M Speed, and its guardian is Dragon. Hatching happens on the map, so the pet is reachable only from a run that has already opened that biome. Its tier labelling is Endgame. The whole ladder is on the Cosmic page.
Cosmic Skeleton Boss in Cosmic
Related pets
Everything in the collection, ordered by reference value. The figures match the ones used site-wide.
| Pet | Rarity | Income / sec |
|---|---|---|
| Unicorn | Divine | $1B/s |
| Eternal Lunar Dragon | Eternal | $250M/s |
| Cosmic Dragon | Secret | $60M/s |
| Cosmic Skeleton Boss — this page | Secret | $45M/s |
| La Vacca Saturno Saturnita | Cosmic | $2.2M/s |
| Cosmic Gorilla | Cosmic | $180K/s |
| Cosmic Gecko | Cosmic | $30K/s |
| Centapede | Cosmic | $1.5K/s |
Biome progression context
Of the 112 pets tracked here, 8 belong to Cosmic, 8 of them with a confirmed reference value, and it is labelled Endgame. Prehistoric comes before it in the ladder, at 17M Speed. The next gate after Cosmic is Cherry Blossom at 2.5B Speed. The collection page lists every pet and every gate in it: Cosmic.
Cosmic Skeleton Boss vs Other Secret Pets
Income comparison
The whole Secret band as a table, strongest first — the rows come from different collections on purpose.
| Pet | Rarity | Collection | Income / sec |
|---|---|---|---|
| Mutated Shark | Secret | Titan Temple | $215M/s |
| Stag | Secret | Cherry Blossom | $145M/s |
| Cosmic Dragon | Secret | Cosmic | $60M/s |
| Cosmic Skeleton Boss — this page | Secret | Cosmic | $45M/s |
| Tralaledon | Secret | Prehistoric | $32M/s |
| TRex | Secret | Prehistoric | $25M/s |
| Kraken | Secret | Abyss Ocean | $15M/s |
| Cerberus | Secret | Volcano | $8M/s |
| Yeti | Secret | Snow | $5M/s |
| King Snake | Secret | Jungle | $3.5M/s |
| Bomboclat Crocolat | Secret | Brainrot (Limited) | unverified |
| Centaur | Secret | Angels & Demons | unverified |
| Gargoyle | Secret | Angels & Demons | unverified |
| Pure Jellyfish | Secret | Angels & Demons | unverified |
| RazorFang | Secret | Angels & Demons | unverified |
The Secret label covers 15 pets across 10 collections, so these are not all neighbours in progression — the comparison is by label, not by where each pet sits in the Speed ladder.
Practical use
It is not the top of Cosmic: Cosmic Dragon is listed at $60M/s against its $45M/s, so within its own collection it is the option behind that one. At $162B an hour it is an endgame figure on this site's scale.
Related Eggs, Pets & Tools
Cosmic
The collection Cosmic Skeleton Boss belongs to, with its gate, its guardian and every pet in it.
Open the Cosmic pageIncome calculator
Put a per-second value against minutes, hours or a whole session.
Open the calculatorSpeed → biome checker
See which collections a given Speed figure has already opened.
Check a Speed figureOther pets to compare it with: Cosmic Dragon, La Vacca Saturno Saturnita, Cosmic Gorilla, Cosmic Gecko, Mutated Shark, Stag. The full roster is on the pet and egg list, and the ranking across tiers is on the tier list.
FAQ
What is Cosmic Skeleton Boss in Steal An Egg?
Cosmic Skeleton Boss is a Secret pet in the Cosmic collection in Steal An Egg, listed at $45M/s on the community reference list. That places it 4th of 8 in Cosmic and 15th of 90 site-wide.
What rarity is Cosmic Skeleton Boss?
Secret-tier. 15 pets here carry that label, 10 of them with a confirmed value, and Cosmic Skeleton Boss ranks 4th among those.
How much does Cosmic Skeleton Boss earn per second?
The community reference value is $45M/s — about $2.7B a minute and $162B an hour if the value holds. A hatch can roll above or below it.
How do you get Cosmic Skeleton Boss?
It is an egg-pool pet of the Cosmic collection. Cosmic opens at 700M Speed, and its guardian is Dragon. That is the only confirmed part: the pet is listed in the Cosmic collection, and this site does not infer an egg name from the collection name alone.
Which egg contains Cosmic Skeleton Boss?
No egg name is given here for Cosmic Skeleton Boss. The collection is Cosmic; naming an egg inside it would be a guess.
Where is Cosmic Skeleton Boss found?
Cosmic (Endgame). Cosmic opens at 700M Speed, and it is guarded by Dragon.
Does size or mutation affect Cosmic Skeleton Boss income?
No verified multipliers are published on this site, so none are printed. Size and Mutation stack on top of the base value, so your own copy can read above or below $45M/s.