Quick answer: The new Alien Biome in Steal an Egg is scheduled to open on Saturday, November 7, 2026, at 11:00 a.m. Eastern Time and 8:00 a.m. Pacific Time. The listed event window runs through November 14. The developers have teased Paranoid Pete, stronger extraterrestrial signals and more UFO sightings, but have not published a confirmed Alien Biome pet list, egg list, entry requirement or reward table. This guide separates the schedule from details players should not treat as confirmed.
Updated November 5, 2026 · By Shivam Das
When does the Steal an Egg Alien Biome start?
The currently listed start is Saturday, November 7, 2026, at 16:00 UTC. For players in the United States, that converts to:
- Eastern Time: 11:00 a.m. EST on Saturday, November 7.
- Pacific Time: 8:00 a.m. PST on Saturday, November 7.
The Roblox event listing gives an end time of Saturday, November 14, at 19:00 UTC. That is 2:00 p.m. EST and 11:00 a.m. PST. The listed window is 171 hours long. These are conversions of the published UTC schedule, not a guarantee that every game server will refresh at precisely the same second. Check the event card and the in-game countdown before planning a session.
For the primary listing, check the Roblox NEW ALIEN BIOME event. You can also open the Steal an Egg experience on Roblox.
What the developers have actually confirmed
The Alien Biome announcement is a teaser, not a complete patch note. Its description says Paranoid Pete has been detecting stronger signals of extraterrestrial activity and that UFO sightings are becoming more frequent. It announces that a new Alien Biome is arriving the following week.
The game's Update 10.5 announcement, posted on October 31, also said Paranoid Pete would arrive on November 2 and that the Alien Biome would release on November 7. The follow-up UFO Invasion content is a separate update from the full biome launch. Keeping those two releases separate matters: players may already be able to take part in UFO activities without the new biome itself being open.
What Update 11 adds before the biome arrives
Update 11: UFO Invasion went live on November 2 and introduces the Paranoid Pete lead-in. Current walkthrough coverage describes a short setup quest involving Pete's machine and a Signal Decoder, followed by recurring UFO encounters. A guide from TechWiser describes finding Pete near the Trails stand and repairing the decoder before following the UFO activity.
Community walkthroughs report that UFO encounters recur around the half-hour marks, but players should follow the timer and prompts shown in their own server. The exact event behavior, rewards and any server-specific differences should be checked in-game rather than assumed from a screenshot or an older guide.
Are the Alien Biome pets, eggs and rewards known yet?
No complete reward list has been confirmed in the material reviewed as of November 3. The announcement establishes the alien theme and the scheduled date. It does not name the biome's new pets, egg types, rarities, income rates, boss, speed requirement, entry route or quest rewards.
That means claims circulating before launch about specific alien pets, secret eggs, guaranteed drops or exact income values should be treated as speculation unless they are backed by a developer announcement or verifiable footage from the live update. A themed event banner is not proof that a particular pet or reward will be available.
How to prepare before the November 7 launch
- Check the live countdown. Open the Roblox event listing and compare it with the countdown shown inside the experience.
- Finish any current UFO Invasion steps you want to complete. The lead-in event is separate from the new biome, so do not assume that completing a UFO task automatically unlocks the Alien Biome.
- Keep useful resources available. Until the new zone's requirements are published, avoid spending valuable currency or items based on an unverified claim about the entry cost or a specific reward.
- Read the in-game instructions on launch. Confirm the access route, speed gate, egg pool and reward details from the actual update rather than relying on old biome requirements.
- Recheck after the update goes live. A scheduled event can be adjusted, and details may become clearer only after players can enter the new area.
Why the schedule matters for U.S. players
The start time falls on a Saturday morning in the United States, which makes it easier for players to plan around school, work and weekend activities. Eastern players should look for the event at 11 a.m.; Pacific players should look at 8 a.m. Because the United States has already moved off daylight saving time by November 7, the correct abbreviations are EST and PST—not EDT and PDT.
The event's listed end time is one week later, but that should not be confused with a promise that every reward will remain obtainable for the entire period. The safest approach is to use the live event card and the in-game notices for any limited-time tasks or reward deadlines.
Frequently asked questions
What date does the Steal an Egg Alien Biome release?
The currently listed date is Saturday, November 7, 2026.
What time does the Alien Biome start in the United States?
The listed start converts to 11:00 a.m. Eastern Standard Time and 8:00 a.m. Pacific Standard Time.
When does the Alien Biome event end?
The event listing gives an end time of November 14, 2026, at 19:00 UTC, or 2:00 p.m. EST and 11:00 a.m. PST.
Which new pets are coming to the Alien Biome?
No new pet names or complete pet list have been confirmed in the announcement reviewed for this article. Wait for the live update or a developer-published list.
What eggs and free rewards will the Alien Biome add?
The official teaser does not identify specific eggs or free rewards. Treat reward lists shared before launch as unconfirmed unless the game or its developers verify them.
Does the UFO Invasion update mean the Alien Biome is already open?
No. Update 11's UFO Invasion is the lead-in event. The full Alien Biome is separately scheduled for November 7.
Where should I check for last-minute changes?
Check the Roblox event listing and the live in-game countdown. Those are better checks than an old screenshot or an unverified social post.
Sources and verification
- Roblox event listing: NEW ALIEN BIOME — event schedule and developer teaser.
- StealAnEgg.app: Update 10.5 — summary of the creator-group announcement about Paranoid Pete and the November 7 biome.
- STEAL EGG: Update 11 — UFO Invasion — update context and distinction between UFO Invasion and the full biome.
- TechWiser: Steal an Egg UFO Invasion Guide — independent walkthrough coverage of the lead-in event.
Editorial note: This is a pre-launch guide checked on November 5, 2026. We will only add named pets, exact requirements and reward figures after they can be verified from the live experience or a reliable developer source.
