Steal An Egg Alien Tidal Surge: All Five Flooded Pets and Spawn Chances

Steal An Egg Alien Tidal Surge is a nighttime flood that temporarily changes the eggs available in the Alien biome. Each in-game night has a recorded 10% chance to trigger the surge. When the biome floods, five special pets enter the egg pool, including Divine Prismare with a listed 0.1% chance within that flooded selection.

The 0.1% Prismare chance applies to an eligible flooded egg. It isn’t a 0.1% chance every time night falls. Here’s how the event works, where to find its pets and what to do while the water is up.

How Steal An Egg Alien Tidal Surge works

Steal An Egg Alien Tidal Surge happens in the Alien biome, beyond the Enchanted Forest. The area’s egg sign recommends 250B Speed for stealing eggs; the sign is a gameplay recommendation, so do not mistake it for proof that every fishing or event interaction requires an identical hard gate.

During a normal visit, the Alien biome has eight regular pets to find. A Tidal Surge changes the environment and substitutes a special five-pet flooded egg selection for the usual biome eggs. The surge is a chance-based nighttime event, not a timetable you can calculate from the real-world clock.

• Get to the Alien biome before night if you want time to check the egg spawns.
• Watch for the flooding announcement and the visible changes across Alien Planet.
• During the flood, look for the temporary eggs associated with the five Tidal Surge pets.
• Take suitable eggs back to your base and hatch them to see which flooded pet you receive.
• If you have unlocked Alien Lagoon, fish during the surge for a chance at a flooded egg through the fishing rewards.

Steal An Egg Alien Tidal Surge lasts until the next egg reset, about five minutes in the November 8 game capture. That timer can change, so follow the one on your screen. The best indicator is the event announcement, egg pool and reset timer you’re actually seeing on screen.

Steal An Egg Alien Tidal Surge pets and chances

These are the five Steal An Egg Alien Tidal Surge pets, with their November 8 egg chances and base earnings. These five odds total 100%. They are not the odds of a surge beginning, and they don’t include the eight ordinary Alien biome pets.

Flooded pet	Rarity	Chance per flooded egg	Recorded base income
Jellynova	Cosmic	73%	$100M/sec
Flarefish	Cosmic	20%	$300M/sec
Tideler	Secret	5%	$2.8B/sec
Abyssjaw	Eternal	1.9%	$5B/sec
Prismare	Divine	0.1%	$20B/sec

Jellynova is by far the most common result, followed by Flarefish. Tideler is the first major rarity jump, while Abyssjaw and Prismare have much smaller individual chances. The income values are Pet Index baselines, so weight and mutation effects can change the number on your own pet.

You won’t find Prismare in the paid Crystal Egg. That separate shop egg contains Sapphire Leviathan as its Divine. Likewise, Nebuloth Kraken is the Divine caught during Cosmic Eclipse in Alien Lagoon, not one of these five flooded egg pets.

Is Steal An Egg Alien Tidal Surge guaranteed after 10 nights?

No. 10% per night does not mean every tenth night. Each eligible night can fail to trigger a flood even if several previous nights have also passed without one. There’s no supported pity counter that forces a surge after a set number of attempts.

It also doesn’t mean a one-in-ten chance at Prismare. First the surge has to happen, then you need to obtain a flooded egg, and finally the egg has to roll Prismare at its own 0.1% rate. These are separate steps, and a dozen eggs can hatch without producing the Divine.

If you’re hunting an extremely rare pet, make use of the time between surges. Train Speed, make room in your pen and check the Alien Lagoon fishing rewards. There’s no reason to sit at Spawn doing nothing while waiting for an event you can’t force.

Steal An Egg Alien Tidal Surge flooded eggs from Lagoon fishing

The Steal An Egg Alien Tidal Surge also changes the Alien egg part of the fishing reward pool. Under the recorded standard fishing screen, a catch has a 28% chance to award an Alien egg. While the surge is active, that egg result comes from the flooded selection instead of the regular eight-pet biome pool.

This does not turn every fishing cast into a flooded egg, nor does it increase a particular pet’s listed egg chance to 28%. The 28% is a chance to get an egg as the fishing result; the pet selection happens within that reward.

To fish during Steal An Egg Alien Tidal Surge, get the Alien Rod from the Ferryman, complete 20 catches and speak to him again for transport into the Lagoon. You’ll also earn Void Pearls, mutations and relics while working towards that unlock. The Lagoon can be visited through the night without the usual trip back to Spawn.

Steal An Egg Alien Tidal Surge: Another way to get an Abyssjaw Egg

Abyssjaw has another route: the final 5,000-catch Fishing Milestones reward includes an Abyssjaw Egg and the Kraken Rod. That’s an alternative way to obtain the egg. It is not proof that the egg always hatches an Abyssjaw pet regardless of any further game mechanics.

If you’ve already been fishing for relics or the Nebuloth Kraken, check your milestones before spending another night hunting flooded eggs. Several valuable rewards arrive from the progression track, which gives your regular fishing a purpose even when the event is inactive.

Steal An Egg Alien Tidal Surge questions answered

Does it flood every night? No. Current in-game records show a 10% chance each night, not a guaranteed nightly event.

How long does the flood last? Until the next egg reset in the recorded build, roughly five minutes. Follow the current in-game event and reset indicators rather than relying on an exact real-time countdown.

Are all five pets in normal Alien eggs? No. The special five-pet selection belongs to flooded eggs during the surge. The regular biome has eight other pets.

Will the flood end forever on November 14? The Roblox NEW ALIEN BIOME event listing ends November 14, 2026 at 7pm GMT. That is the listing’s window, not proof that this mechanic will be removed on that date.

For the strongest chance of getting value out of a surge, be in the Alien biome before nightfall, recognise the flood announcement and grab eligible eggs while they are available. The Steal An Egg Alien Tidal Surge isn’t a guaranteed drop timer, so prepare for more than one night.

Official source: Steal An Egg NEW ALIEN BIOME event on Roblox.