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A UFO has been sighted banner in Steal an Egg

UFO Invasion in Steal an Egg

A UFO spawns every 30 minutes (at :00 and :30) and stays for about 5 minutes, and bringing it 3 Abducted eggs gives 1,000 to 3,000 UFO Debris. 1 UFO in 10 is a Rare UFO with a vault that holds the Alien Staff. Paranoid Pete trades 500 Debris for an Alien Mutation, which has a 15% chance to give your pet the Abducted Mutation.

Part of Update 11: UFO INVASION!!

Alien MutationNext UFO inUFO HERE NOW, leaves in00:00Spawns every 30 minutes, at :00 and :30, and stays for about 5 minutes.

Mechanics

  1. Fix Pete's machineTalk to Paranoid Pete at Spawn and solve the pipe puzzle on his machine, so that he gives you a Signal Decoder.
  2. Find the UFOWhen the banner says A UFO has been sighted, run down the map, as the UFO can spawn in any biome. The Signal Decoder bar fills from 0% to 100% as you get close to it.
  3. Steal 3 Abducted eggsEggs with a green UFO glow are Abducted eggs, and they are not always near the UFO. Steal 3 of them and run each one into the UFO's beam.
  4. Pick up UFO DebrisStay in the beam after the third egg so that UFO Debris drops down, then walk over the Debris to pick it up. Debris stays on the ground after the day changes, so you can go back and grab Debris that you have not picked up.
  5. Trade with PeteBring the Debris to Paranoid Pete, where each 500 UFO Debris buys 1 Alien Mutation. To clarify, the Alien Mutation is a usable item that has a chance to give the Abducted Mutation on your pet, with a 15% chance on use/consumption.
  6. Rare UFO1 UFO in 10 is a Rare UFO, which spawns in every server at once and teleports you inside with a green beam. Smashing the capsules inside gives 4,000 to 5,000 UFO Debris, and typing 4827 on the vault keypad gives you the Alien Staff.

Pictures and Video

Fix Pete's Machine

Paranoid Pete's booth at Spawn, where you press E to talk to him.Taken in game by eggPing.
Paranoid Pete and his radar booth at Spawn in Steal an Egg

Paranoid Pete's booth at Spawn, where you press E to talk to him.

Pete's machine before it is solved, where you tap a tile to turn it.Taken in game by eggPing.
Alien Sensor Tracker pipe puzzle before it is solved in Steal an Egg

Pete's machine before it is solved, where you tap a tile to turn it.

The answer, with power running up, across the top row, and down the right side to the Tracker.Taken in game by eggPing.
Alien Sensor Tracker pipe puzzle solved, with green power running from Power to Tracker

The answer, with power running up, across the top row, and down the right side to the Tracker.

Steps for Fix Pete's Machine

Catch the UFO

This banner shows at the top of the screen when a UFO spawns.Taken in game by eggPing.
A UFO has been sighted banner with a Leaves In 4:45 timer in Steal an Egg

This banner shows at the top of the screen when a UFO spawns.

The Signal Decoder screen, where the bar fills as you get close (top), the UFO is found (middle), and all 3 eggs are in (bottom).Taken in game by eggPing.
Signal Decoder screens: Strange Signal at 96%, UFO Found 0 of 3, and Pick up your reward 3 of 3

The Signal Decoder screen, where the bar fills as you get close (top), the UFO is found (middle), and all 3 eggs are in (bottom).

Steps for Catch the UFO

Alien Trade-In

Paranoid Pete's Alien Trade-In, where 500 UFO Debris buys 1 Alien Mutation.Taken in game by eggPing.
Alien Trade-In window: trade 500 UFO Debris for an Alien Mutation with a 15% chance to work

Paranoid Pete's Alien Trade-In, where 500 UFO Debris buys 1 Alien Mutation.

Steps for Alien Trade-In

Video Guide

One full UFO run, from the first signal to the trade with Pete.69 seconds with no sound (Taken in game by eggPing)
Steps for Video Guide

Rare UFO

The green beam teleports you up into the Rare UFO.Taken in game by eggPing.
A green beam from the Rare UFO teleports a player up in Steal an Egg

The green beam teleports you up into the Rare UFO.

Inside the Rare UFO, where you smash the coloured capsules for UFO Debris.Taken in game by eggPing.
Inside the Rare UFO in Steal an Egg, with coloured capsules to smash for UFO Debris

Inside the Rare UFO, where you smash the coloured capsules for UFO Debris.

The sticky note on the desk says 4827.Taken in game by eggPing.
Yellow sticky note with the code 4827 on the Rare UFO desk in Steal an Egg

The sticky note on the desk says 4827.

The locked vault door has a keypad on its right.Taken in game by eggPing.
Locked Alien Vault door with a keypad inside the Rare UFO in Steal an Egg

The locked vault door has a keypad on its right.

Type 4827 and press OK.Taken in game by eggPing.
Alien Vault keypad with the code 4827 typed in, in Steal an Egg

Type 4827 and press OK.

The vault opens and gives you the Alien Staff.Taken in game by eggPing.
Vault Unlocked screen showing the Uncommon Alien Staff in Steal an Egg

The vault opens and gives you the Alien Staff.

Steps for Rare UFO

Rewards

Guides

Common Questions

Is UFO Invasion still active?

Yes, UFO Invasion is in the game now and started on Nov 2, 2026.

Which rewards come with UFO Invasion?

The rewards are Signal Decoder, UFO Debris, Alien Mutation, Abducted Mutation, and Alien Staff, and the Rewards list says how to get each one.

Sources

Last checked Nov 3, 2026

Report a Problem
  • Played in game by eggPing, Nov 2, 2026Verified in game, checked Nov 2, 2026One full run on video got 2,324 UFO Debris from one UFO, which traded for 4 crystals with 324 left over. The UFO timer starts at about 4:45, and UFOs spawned in different biomes (one in the second biome). Abducted eggs can be far from the UFO, and Debris left on the ground stays after the day changes.
  • Steal an Egg Discord: Update 11 post, Nov 2, 2026Official, checked Nov 2, 2026Every 30 minutes, at :00 and :30, a UFO spawns somewhere on the map.
  • Hold To Reset: UFO Invasion guideSource, checked Nov 2, 2026
  • Seen in game by eggPing, Nov 3, 2026Verified in game, checked Nov 3, 2026A UFO can give the Alien Staff, which we first called the Alien Bat.
  • Played a Rare UFO in game by eggPing, Nov 3, 2026Verified in game, checked Nov 3, 20261 UFO in 10 is a Rare UFO, which spawns in every server at once and teleports you inside with a green beam. Smashing every capsule gave 4,000 to 5,000 UFO Debris, and the sticky note code 4827 opened the Alien Vault with the Alien Staff (Uncommon), and the Abducted Mutation read x2.5.

Change Log

  • Nov 3, 2026: Abducted bonus changed.
  • Nov 3, 2026: Rare UFO changed.