# Alien Biome in Steal an Egg — Update 12, Alien Lagoon and Nebuloth Kraken | STEAL EGG Canonical: https://stealegg.com/en/updates/update-12-alien-biome/ Language: en [STEAL EGG](/en/)/[Update history](/en/updates/)Update 12 · Released # Alien Biome in Steal an Egg — Update 12, Alien Lagoon and Nebuloth Kraken Update 12 launched on November 7, 2026 with the Alien biome and Alien Lagoon fishing. The announcement lists 13 new pets and separately names 5 Tidal Surge exclusives, including a Divine. The two counts may overlap. 2026-11-07 ## Quick answers - [How do you start fishing in Alien Lagoon?](#fishing) - [How do you catch Nebuloth Kraken?](#cosmic-eclipse) - [What is Alien Tidal Surge?](#tidal-surge) - [How much does Dark Matter cost?](#dark-matter)[![Alien Lagoon during Cosmic Eclipse.](/assets/images/alien-biome-update-12/01-alien-lagoon-cosmic-eclipse.webp)](/assets/images/alien-biome-update-12/01-alien-lagoon-cosmic-eclipse.webp)Alien Lagoon during Cosmic Eclipse. ## How do you start fishing in Alien Lagoon? Talk to the alien NPC in the Alien biome to receive a rod and unlock Alien Lagoon. Fishing can reward Void Pearls, exclusive eggs, rare mutations and other rewards. [Alien Lagoon fishing guide in Steal an Egg](/en/guides/alien-lagoon-fishing-guide/) ## How do you catch Nebuloth Kraken? Fish in Alien Lagoon during Cosmic Eclipse to obtain [Nebuloth Kraken Egg](/en/eggs/nebuloth-kraken-egg/). A new round starts every 30 minutes, with a quota of 750 catches shared globally.[![Cosmic Eclipse panel with the Nebuloth Kraken counter at 0/750 and a countdown.](/assets/images/alien-biome-update-12/02-nebuloth-kraken-contador-global.webp)](/assets/images/alien-biome-update-12/02-nebuloth-kraken-contador-global.webp)Cosmic Eclipse panel with the Nebuloth Kraken counter at 0/750 and a countdown. [Nebuloth Kraken](/en/pets/nebuloth-kraken/) [Cosmic Eclipse in Steal an Egg: how to catch Nebuloth Kraken](/en/guides/cosmic-eclipse/) ## What is Alien Tidal Surge? Each in-game night, the Alien Biome can flood. When it does, explore Flooded Alien Planet and look for its exclusive eggs, including Prismare Egg. Cosmic Eclipse is the separate fishing competition for Nebuloth Kraken. The exact flood chance and spawn odds are still unverified. [Jellynova](/en/pets/jellynova/) · [Flarefish](/en/pets/flarefish/) · [Tideler](/en/pets/tideler/) · [Abyssjaw](/en/pets/abyssjaw/) · [Prismare](/en/pets/prismare/) [Tidal Surge in Steal an Egg: what to do and how to find Prismare](/en/guides/tidal-surge-prismare-guide/) ## How much does Dark Matter cost? 1,750 Void Pearls · Alien Lagoon · 30%. Apply to an egg. ×2.5[![Alien Trade-In panel offering one Dark Matter Mutation for 1,750 Void Pearls.](/assets/images/alien-biome-update-12/04-dark-matter-alien-trade-in-1750.webp)](/assets/images/alien-biome-update-12/04-dark-matter-alien-trade-in-1750.webp)Alien Trade-In panel offering one Dark Matter Mutation for 1,750 Void Pearls. [Dark Matter Mutation](/en/guides/mutations-guide/dark-matter/) ## Access and Speed The location of the biome entrance and its access requirements are still being checked. The reported 250B Speed for unlocking fishing is unverified on the NPC screen. Biome access, the fishing unlock and Speed for escaping with eggs are separate. ## 100 fishing milestones Fishing progression has 100 milestones, with new rods, exclusive eggs, mutations and boosts. Better rods earn more Void Pearls. The charge bar in the screenshot shows ×1.5 Luck. Individual rod names, unlock levels and rewards are still pending verification.[![Fishing rod charge bar showing ×1.5 Luck.](/assets/images/alien-biome-update-12/03-vara-barra-de-carga.webp)](/assets/images/alien-biome-update-12/03-vara-barra-de-carga.webp)Fishing rod charge bar showing ×1.5 Luck. ## [Alien Biome](/en/guides/biomes/alien/) ## Alien Biome - [Bloomfin](/en/pets/bloomfin/) · $550K/s · [Bloomfin Egg](/en/eggs/bloomfin-egg/) - [Vexlet](/en/pets/vexlet/) · $2M/s · [Vexlet Egg](/en/eggs/vexlet-egg/) - [Bloomspire](/en/pets/bloomspire/) · $4M/s · [Bloomspire Egg](/en/eggs/bloomspire-egg/) - [Glacigon](/en/pets/glacigon/) · $50M/s · [Glacigon Egg](/en/eggs/glacigon-egg/) - [Redmaw](/en/pets/redmaw/) · $140M/s · [Redmaw Egg](/en/eggs/redmaw-egg/) - [Aurora Stag](/en/pets/aurora-stag/) · $1.2B/s · [Aurora Stag Egg](/en/eggs/aurora-stag-egg/) - [Viridian Prowler](/en/pets/viridian-prowler/) · $3B/s · [Viridian Prowler Egg](/en/eggs/viridian-prowler-egg/) - [Obsidian Rex](/en/pets/obsidian-rex/) · $12.5B/s · [Obsidian Rex Egg](/en/eggs/obsidian-rex-egg/) ## Flooded Alien Planet · Tidal Surge - [Jellynova](/en/pets/jellynova/) · $100M/s · [Jellynova Egg](/en/eggs/jellynova-egg/) - [Flarefish](/en/pets/flarefish/) · $300M/s · [Flarefish Egg](/en/eggs/flarefish-egg/) - [Tideler](/en/pets/tideler/) · $2.8B/s · [Tideler Egg](/en/eggs/tideler-egg/) - [Abyssjaw](/en/pets/abyssjaw/) · $5B/s · [Abyssjaw Egg](/en/eggs/abyssjaw-egg/) - [Prismare](/en/pets/prismare/) · $20B/s · [Prismare Egg](/en/eggs/prismare-egg/) ## Seven relic slots and the secret fusion room Combine [Obsidian Rex](/en/pets/obsidian-rex/) and [Nebuloth Kraken](/en/pets/nebuloth-kraken/) in the Fusion Lab behind the door with seven colored relic slots in the Alien Biome. The fusion awards [Xenorath Egg](/en/eggs/xenorath-egg/), which hatches into [Xenorath](/en/pets/xenorath/). How to obtain each relic and how duplicates count are still unverified.[![Secret door with seven colored relic slots.](/assets/images/alien-biome-update-12/05-porta-das-sete-reliquias.webp)](/assets/images/alien-biome-update-12/05-porta-das-sete-reliquias.webp)Secret door with seven colored relic slots.[![Orange relic in the Alien biome.](/assets/images/alien-biome-update-12/07-reliquia-laranja.webp)](/assets/images/alien-biome-update-12/07-reliquia-laranja.webp)Orange relic in the Alien biome.[![Green relic at the secret door.](/assets/images/alien-biome-update-12/08-reliquia-verde-na-porta.webp)](/assets/images/alien-biome-update-12/08-reliquia-verde-na-porta.webp)Green relic at the secret door.[![Fusion room panel showing Obsidian Rex and Nebuloth Kraken.](/assets/images/alien-biome-update-12/06-fusao-obsidian-rex-nebuloth-kraken.webp)](/assets/images/alien-biome-update-12/06-fusao-obsidian-rex-nebuloth-kraken.webp)Fusion room panel showing Obsidian Rex and Nebuloth Kraken. [How to get Xenorath in Steal an Egg: 7 relics and Alien Biome fusion](/en/guides/alien-relics-secret-door-guide/) [How to get Xenorath in Steal an Egg: 7 relics and Alien Biome fusion](/en/guides/alien-relics-secret-door-guide/) · [Xenorath](/en/pets/xenorath/) Update 12November 7, 2026 · 16:00 UTC · 13:00 Brasília · 11 AM ESTTime zone: UTC ## Related guides - [Biome guide](/en/guides/biomes-progression/) - [Update history](/en/updates/) - [Pet catalog](/en/pets/) - [Egg catalog](/en/eggs/) - [Fusion guide](/en/fusion/) - [Mutation guide](/en/guides/mutations-guide/) - [Update 11 — UFO Invasion](/en/updates/update-11-ufo-invasion/) - [Haunted Rod · Halloween Dimension](/en/guides/fishing-haunted-rod-guide/) ## Crystal Egg[![Crystal Egg — Purple egg covered in bright crystal blocks.](/assets/images/eggs/crystal-egg-512.avif)](/en/eggs/crystal-egg/) Crystal Egg is a limited egg sold for Robux in the Featured section of the in-game shop. The chances below are per egg. [Pets from Crystal Egg](/en/eggs/crystal-egg/)