Pet Simulator 99 Eggs & Hatch Rates
Pet Simulator 99 has 878 eggs across all worlds and events, with 869 actively seeded with hatch pools. Each egg lists its pet pool and weight (weights sum to ~100, so a weight of 35 reads as ~35% hatch chance). Shiny, Rainbow, and Gold modifiers roll independently on top of the pet you hatch. Data sourced from BIG Games' official API.
Click any egg to expand its full pet pool
Searching for a pet name expands every egg that contains it and highlights the matching row, so you can answer "what eggs hatch X" in one query.
878 eggs · 869 with seeded pet pools · auto-synced on August 5, 2026
Showing 869 of 869 eggs
Frequently asked
How do hatch chances work in PS99?
Each pet in an egg's pool has a weight. Weights are normalized to sum to ~100, so a weight of 35 reads as ~35% chance. Shiny / Rainbow / Gold modifier rolls happen independently on top of whatever pet you hatched.
What's the rarest egg to find a Huge in?
Huge pets appear at very different weights across eggs — some event eggs advertise a guaranteed-Huge tier while regular eggs put Huges at 0.05–1.5%. Search a Huge name above and the matching eggs sort to the top with the rates visible inline.
Why are some eggs not in the list?
The default view filters out the 9eggs whose pet pools are empty in the API (likely dev placeholders or removed eggs). Toggle "Show empty-pool eggs" if you want to see everything.
Where does this data come from?
BIG Games' official public API (biggamesapi.io) — their developer-published endpoint. The same API powers our Huge & Titanic Pets list.
Related
- Huge & Titanic PetsBrowse all 1,227 prestige-tier pets, then come back here to find which eggs hatch each one.
- Pet Simulator 99 HubBeginner guide, codes, current event coverage.
- Active CodesFree diamonds, boosts, and ultra-lucky-charm rewards.
- Spring Event 2026Spring Boss Chest + Update 76 walkthrough.
Pet Simulator 99 Blog Posts
Stay up-to-date with the latest guides, event breakdowns, and strategy tips
Pet Simulator 99 Void RNG Event: Get the Titanic Arcane Void Cat
The Void RNG Event is live in PS99 May 9–23. Here's how the combo streak mechanic works, how Lucky Weather helps, and the best strategy for targeting the Titanic Arcane Void Cat.
Pet Simulator 99 Update 77: Fantasy World & Time Trials
PS99 Update 77 dropped May 2, 2026 with the Fantasy World event (Veilwood Hollow, Wicked Kirin), Time Trials competitive mode, TITANIC Presents crafting via the Fantasy Combine-o-Matic, Infinity Egg, and Rank 40 expansion. Full guide to everything new.
Pet Simulator 99 Wiki: 2,720 Pets, 790 Eggs & Every Enchant
We just shipped three new PS99 reference pages sourced from BIG Games' own official API. 2,720 pets including all 1,227 prestige tiers, 790 eggs with hatch percentages, and 65 enchants/charms — no fabricated trade values, no scraping.