How should income decide a ranking?
Start with the displayed rate under one stated condition set, then decide whether you are ranking absolute earning power or return on the cost of acquiring the pet. Those are different questions. A pet can have the highest rate and still be a poor first purchase if it costs far more than the alternatives.
This page does not publish a pet order because the current evidence does not support one. It defines the fields and the comparison so a future ranking can be checked rather than trusted.
Define the metric before collecting values
Absolute rate is currency per second at a stated boost. Capital efficiency is the cost required to add one unit of rate, which can be written as cost divided by the rate improvement. Payback is the cost divided by the rate. All three use the same inputs but answer different questions.
A ranking should say which one it uses. If it mixes them, a high-rate pet can appear above a cheaper pet without the reader knowing whether the order is about earning speed or about the cost of getting there.
Income comparison fields
| Target | Field | Unit | Why the ranking needs it |
|---|---|---|---|
| Acquisition cost | Acquisition cost | Currency | Needed for payback and capital efficiency |
| Boost state | Boost state | None or multiplier | Mixing boosted and unboosted values invalidates the order |
| Date and source | Date and source | YYYY-MM-DD and URL | Values and costs change |
| Displayed rate | Displayed rate | Currency per second | The base value for every metric |
| Rate improvement | Rate improvement | Currency per second | Separates a replacement from a new purchase |
A worked comparison with two hypothetical pets
Pet X displays $4/s and costs 800. Pet Y displays $6/s and costs 1,800. X pays back its cost in 200 seconds at a constant rate; Y pays back in 300 seconds. Y earns more per second, but X returns its cost faster.
If you already own X and are considering Y, the relevant numbers are the extra 1,000 cost and the extra $2/s, which give a 500-second incremental payback. The ranking changes depending on whether the question is 'which earns more' or 'which is the better next purchase'.
These numbers are invented for arithmetic. They are not Fake an Egg prices or rates. The point is that the same two pets can produce different orders under different metrics, so a ranking must name its metric.
How should a ranking present a tie or a gap?
A tie should show the shared metric and the fields that still differ, such as cost or boost dependence. Two pets can have the same displayed rate and very different payback, so the order should say which measure is tied.
A gap is not a tie. If a candidate is missing a rate, a cost or a condition, leave it in an insufficient-evidence group and name the missing field. Interpolating a middle position hides the difference between a measured value and an absent one.
Why gross income is not enough
- A high rate can come with a much higher cost.
- A boosted rate can expire before the cost is recovered.
- A replacement only adds the difference over the pet you already own.
- Downtime and losses reduce the earnings the projection assumes.
- An unknown cost or rate cannot be ranked against known values.
Income ranking questions
Which pet has the highest income?
No complete or comparable income table has been verified. Bunny has a qualified $3/s video snapshot and Rainbow Cat's rate is obscured. A highest-income claim needs current rates for the full roster under the same conditions.
What is capital efficiency?
It is the cost required to add one unit of rate, calculated as cost divided by the rate improvement. It helps compare pets when the cheaper option earns less per second but costs much less to obtain.
Should a ranking use boosted rates?
It can, but it must say so and apply the same boost to every candidate. Mixing a boosted value with an unboosted one ranks the boost rather than the pets.
Sources and evidence boundaries
- Fake an Egg — official Roblox experience
The public experience description identifies Fake an Egg by Slime Time Studios and its egg-disguise and pet-stealing premise. It does not supply a pet database, current codes, hatch odds, income multipliers or a carrying-speed formula.
Accessed - Fake an Egg — Mr Red Dangerous
Actual introductory gameplay frames reviewed on 2026-10-17 show Bunny Egg at 0:10, Bunny and RAINBOW Cat at 1:00, and Chicken Egg variants at 2:40. Bunny displays $3/s in that session; Cat income is obscured. Capture date, active boosts, current base rates, mutation multipliers and hatch odds are not established.
Accessed