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Steal An Egg UFO Invasion (Update 11): Abducted Mutation, Signal Decoder and Alien Biome Date

By Poodadoo Editors · November 4, 2026

Update 11, the UFO Invasion, went live on Monday, November 2, 2026. Fix Paranoid Pete’s machine to get a Signal Decoder, then every 30 minutes a UFO lands in one biome. Bring it three eggs marked Abducted and it drops UFO Debris, and 500 Debris buys one Abducted mutation crystal: a 15% chance to give a pen egg a reported 2.5x multiplier. The event leads into an Alien Biome that Roblox’s event listing schedules for Saturday, November 7.

What Update 11 added

FeatureWhat it doesHow sure
Paranoid PeteNew NPC at spawn; one guide places him near the Trails standSeveral guides agree
Signal DecoderReward for fixing Pete’s machine; shows which biome the UFO is inSeveral guides agree
UFO InvasionA UFO event every 30 minutes, at :00 and :30holdtoreset and techwiser
UFO DebrisDropped when the UFO leaves after you deliver three Abducted eggsSeveral guides agree
Abducted mutation500 Debris per crystal, 15% success, 2.5x incomeChance seen on the trade screen; multiplier reported, not shown in game
Rare UFOA bigger UFO you can board, with capsules and a vaultSpawn chance disputed
Alien StaffA weapon from the Rare UFO’s vaultSeveral guides agree

Step by step

  1. Find Paranoid Pete at spawn and talk to him. His machine is broken.
  2. Solve the puzzle at the table next to him. holdtoreset describes connecting pipes from the top left to the bottom right; techwiser describes a power-line tile puzzle and says each player gets a different layout. Solving it unlocks the computer and gives you the Signal Decoder.
  3. Wait for the UFO. It arrives on the hour and half hour. Equip the Signal Decoder to see which biome it is in.
  4. Collect three Abducted eggs from that biome. These are eggs with a visible Abducted effect. bloxb.com reports an outer countdown of about five minutes, so move fast. Your Speed must be high enough for the biome the UFO picked.
  5. Deliver them to the UFO. After the third egg it leaves and drops UFO Debris. Pick it up.
  6. Trade at Pete. 500 Debris buys one Alien Mutation crystal (the trade screen calls it “Alien Mutation”; the launch post calls it the “Abducted Mutation consumable”). Use it on an egg in your pen.

How much Debris you get

No fixed amount has been confirmed. Reported figures:

SourceReported Debris
bloxb.com test, low-value eggsabout 1,000 to 1,500 per UFO
bloxb.com test, high-value eggsabout 2,500 per UFO
Rare UFO capsulesextra Debris from breaking capsules inside; no total given

If 1,000 to 2,500 per UFO holds, one regular UFO pays for two to five crystals. At 15% each, you need about 6.7 crystals per success on average, so expect roughly two to three UFO runs per Abducted mutation, with a lot of variance. We do not yet know whether a failed crystal is used up; Fractured consumables are, so plan as if this one is too.

Is the Abducted mutation worth it?

At 2.5x it matches Golden and Spirit Bloom, and sits just under the 2.75x consumables (Fractured, Scrambled, Spectral). Its advantage is access: it is the only mutation you can farm on a timer right now, with no Robux and no event that has already ended. Put it on your heaviest, highest-income egg, because the multiplier applies to the whole pet. To see what it is worth on your pet, select Abducted in the mutation calculator.

Two open questions:

  • The multiplier. stealegg.com, holdtoreset.com and bloxb.com all list 2.5x; stealanegg.app says it is one player’s account and the clip did not show a readout. Check your own pet card: in-game $/s divided by base income and size factor should be 2.5.
  • Stacking. If your pet already has a mutation, no one has said whether Abducted replaces it or adds to it.

The Rare UFO and the Alien Staff

Sometimes a Rare UFO arrives instead. techwiser says there is a 10% chance during a regular UFO event; holdtoreset and bloxb only say it can appear at night. You can board it. Inside:

  • Capsules hold eggs, shards and extra Debris. Break them.
  • A vault with a four-digit code. Players recorded 4827, also written on a sticky note in the room; stealegg.com warns the code may not be the same every time, so read the note.
  • The Alien Staff, a limited weapon (listed as Uncommon), is in the vault. bloxb reports about three minutes inside before the UFO leaves.

Alien Biome (Update 12): November 7

stealanegg.app and stealegg.com both cite Roblox’s event listing for an Alien Biome from Saturday, November 7, 2026 at 16:00 UTC (11 AM EST) to November 14 at 19:00 UTC. A recap of the Halloween finale also mentions a countdown at the edge of the Enchanted Forest pointing to the same day. Its name, eggs, pets and Speed requirement have not been published. Since the Enchanted Forest needs 50B Speed, expect the new biome to need more. We will add its pets to the pets list once the wiki has them.

What came just before: Halloween Part 2 and the concert

  • Halloween Part 2 (from October 24, 15:00 UTC). A sealed portal behind the Abandoned Manor opened a boss arena. The Pumpkin King boss (first phase: Pumpkin Brute) runs about every 30 minutes. A hidden fishing pool in Forgotten Town gives the Manor Key, and the manor’s fusion machine turns Ghost Fish plus Voidseer Pumpkin into the Divine Cursed Monarch ($12.5B/s base). Guides disagree on whether you need one or two of each.
  • Jonas Brothers concert (October 31, 15:00 UTC). Do Big Studios reported just over 8.4 million concurrent players. Guinness World Records had named 12,862,161 as the record to beat; we found no result announced. Finishers reportedly got the Musical mutation (100% success, multiplier not published), the Musical Ladybug pet (about $6M/s) and a Guitar.
  • Halloween finale (October 31 to November 2), per one recap: boosted Candy Corn, the Divine Headless Horseman for 750,000 Candy Corn, an 800-Robux Burning Hell egg, and a pen upgrade from 19 to 20 equipped pets for 50Qa. One source only.

Timers for all of these are on the events schedule.

Sources & last checked

Last checked: November 4, 2026.

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