Open Sea For Animals Animals: Animal List, Egg Sources, and Income

Quick answer

In Open Sea For Animals! (a Roblox simulation tycoon by xFrozen x Dudes), animals are your income: split open the sea for Eggs, run them back to your base before the sea waves close on you, hatch them into Animals, and place them at your base — every placed Animal earns Cash per second and keeps earning even while you are offline.

• The animal list below covers the animals and eggs named in current gameplay footage and code reporting. It is a working reference, not an official full roster — the official game description says the game updates every Saturday, so new animals can arrive after updates.
• Per-animal income readings depend on base upgrades, rebirth multipliers, and variant labels, so no fixed per-animal stat is claimed on this page.
• Rarity and variant labels (uncommon, mythic, divine, secret, special, cosmic; diamond, rainbow, gold) appear in footage, but their official ordering and hatch odds are not established here — check the label shown on each egg in-game.

Animals and eggs named so far

Checklist

• Parrot

  Hatch result of a player's first placed egg; the player notes it would "usually" be a chicken.

• Chicken

  Cited as the usual first-egg hatch outcome.

• Frog

  Frog egg collected in an early zone; a "diamond frog egg" also appears.

• Bat

  Bat egg found on a sea run; a Bat Animal is also reported as a code reward.

• T-Rex

  T-Rex eggs found in deeper zones; a T-Rex also chases the player in the egg area.

• Tiger (including a rainbow variant)

  Tiger eggs stolen and hatched; one hatched as a rainbow tiger.

• Bull

  Hatch result from a T-Rex egg batch.

• Diamond Pigeon

  Starting pet in a restart run.

• Seahorse

  Hatch result noted during an egg-opening sequence.

• Gorilla

  Expected at a newly opened deep zone.

• Ostrich

  A "mythic divine secret ostrich egg" appears at a deep zone.

• Polar Bear

  Polar bear egg held by the max boss at the final zone.

• Snake

  Endgame hatch result.

• Saber-tooth (gold variant)

  Endgame hatch result.

• Mouse (wording uncertain)

  Heard as "mouse eternal" in footage; two endgame hatches.

• Gold Bunny

  Endgame hatch that became that player's best earner.

• Hamster

  Endgame hatch earning billions.

How eggs are obtained: zones and rarity

The sea is split into zones, and each zone holds a different rarity of egg — the farther the zone, the rarer the egg. The last zone is the Polar Bear zone at the far end of the sea, which needs enormous strength (around 100 quadrillion) and holds the best eggs in the game. Footage shows the rarity labels in play: an "uncommon" frog egg early in a run, a "mythic divine secret ostrich egg" deep in a run, and the polar bear egg carried by the max boss at the end, which that player identified as their first "special" rarity hatch. The footage does not establish the official ordering between these labels or the hatch odds behind any egg, so treat them as observed labels rather than a confirmed rarity ladder.

Special animals and code-linked rewards

Bat Animal — reported code reward. A code reward can add a placeable animal without waiting on a hatch. Check the current Codes page for the exact code and availability, then confirm the claim in the game and place the animal in an open slot. No reliable rarity tier is established for the Bat here.

Purchasable animals. Two non-egg acquisition routes appear in footage: the Hydra, described in the video as the most OP secret in the game, bought directly from the in-game shop, and an exclusive pack purchased for 40 Robux that granted what the player calls one of the best secrets in the whole game, a name transcribed as "Masiosaurus" — the spelling is uncertain, so check the pack's listed name in-game. These are the only shop/Robux animal purchases documented in the footage behind this page.

Animal income: what placed animals earn and what changes it

Tips

Animal slots

Your base has a limited number of animal slots, and every animal in a slot earns cash per second — even while you are offline.

Replace weak earners

When slots are full, swap the lowest earners for new hatches. Check the placed lineup and compare displayed earnings before spending early Cash.

Base upgrades

Upgrading the base upgrades the animals, raising what they earn.

Rebirth

Rebirth only costs Cash and doubles the cash multiplier each time, and it does not reset your animals. Guides list the ladder as 8x, 16x, 32x and so on, while gameplay footage shows a ladder starting at 2x (2, 4, 8, 16, ... 256) — the starting point appears to depend on your progression state, so check the current multiplier in-game before rebirthing.

Game passes

x2 Cash Gains (75 Robux) doubles all income; VIP (85 Robux) gives x1.5 cash plus a slot; the +2 and +4 Pet Slot passes add room for more animals.

Observed income readings and variant labels

Every number below is one player's on-screen reading at a specific upgrade, rebirth, and progression state. Animal income scales with base upgrades, rebirth multipliers, and variant labels, so treat these rows as examples of what hatches displayed — not fixed per-animal stats.

Comparison

Comparison

Animal	Rarity / variant label	Observed income	Context
Frog	uncommon	4,000 per second	Early-zone hatch in a restart run
Unnamed hatch from a T-Rex egg	cosmic rarity	7.5 million per second	Deeper-zone hatch
Mouse (heard as "mouse eternal")	uncertain transcript	60 billion	Endgame hatch
Hamster	not stated	billions	Endgame hatch
Polar Bear	described as most OP	172 billion	Final-zone hatch
Gold Bunny	gold variant	no number stated; best in that player's lineup	Endgame hatch

Variant labels heard in the footage: diamond (diamond pigeon, diamond frog egg), rainbow (rainbow tiger), gold (gold saber-tooth, gold bunny), and cosmic (a hatch described as cosmic rarity). The footage does not establish the official ordering of the rarity and variant labels, the hatch odds behind any egg, or the per-variant multipliers — read each hatch's own on-screen label and earnings instead of assuming a fixed ladder.

To see the lineup for yourself, open Open Sea For Animals! from the Roblox game page — and recheck animal names, egg zones, and values after any Saturday update, since the game updates weekly.