Steal An Egg IndexToxic Rat in Steal An Egg
Mythic · wiki data synced Oct 24, 2026
Toxic Rat is a Mythic pet that earns $180K/s at its base size of 8 kg. It comes from the Biohazard Egg, inside the Biohazard Egg. The wiki lists no spawn chance for it.
It is #166 of 236 pets by base income, and #5 of 5 in Biohazard Egg.
- Rarity
- Mythic
- Base income
- $180K/s
- Base size
- 8 kg
- Source
- Biohazard Egg
- Egg
- Biohazard Egg
How to get Toxic Rat
Toxic Rat does not spawn in a normal zone nest. It comes from the Biohazard Egg, inside the Biohazard Egg. The wiki has no spawn chance for it yet, so we don't show one.
Toxic Rat value by size and mutation
Income grows with weight but slows down past 125× the base size. These are the wiki's formula at three sizes:
| Size | Normal | Golden ×2.5 | Rainbow ×3.5 |
|---|---|---|---|
| 8 kg (base) | $180K/s | $450K/s | $630K/s |
| 80 kg | $745K/s | $1.86M/s | $2.61M/s |
| 800 kg | $3.08M/s | $7.7M/s | $10.8M/s |
Work out your own Toxic Rat: open it in the income calculator. All multipliers are on the mutations page.
How Toxic Rat compares
By base income Toxic Rat is #166 of 236 overall and #17 of 30 Mythic pets. Just above it: Cosmic Gorilla ($180K/s); just below: Crustacia ($130K/s).
Other pets in Biohazard Egg
| Pet | Rarity | Base $/s | Drop chance |
|---|---|---|---|
 Nuclear Mantis | Eternal | $1.5B/s | — |
 Nuceodile | Secret | $500M/s | — |
 Toucax | Cosmic | $30M/s | — |
 Radcoon | Cosmic | $2.2M/s | — |
| Toxic Rat | Mythic | $180K/s | — |
Source: Toxic Rat on the Steal An Egg Wiki (CC BY-SA). First listed on the wiki Sep 27, 2026, during the Dr. Scramble’s Revenge week. Synced Oct 24, 2026.