Sweep theMoonWIKI
Events & Activities

Sweep The Moon UFO Event: Golden Key, Chest and Escape

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When a UFO lands in Sweep The Moon, fight its aliens to reach the treasure inside. The Golden Key gives every player access, but opening the chest starts a countdown.

A player aims a Ray Gun at a KEY-marked alien inside the UFO.
In-game view

Quick answer

Follow the landing notice and green beam to the UFO, equip your Ray Gun and defeat the aliens. Once the Golden Key announcement appears, enter the UFO and press E at the Alien Treasure Chest. Every player can receive treasure; leave before the 10-second self-destruct countdown ends.

Find the Landed UFO and Fight the Aliens

Watch for the UFO landing announcement, then follow the green beam to the ship. Select the Ray Gun from your hotbar, aim at the aliens and fire.

A green alien marked KEY can appear inside the UFO. Continue fighting and watch for the Golden Key announcement before trying to claim the chest.

A player aims a Ray Gun at a KEY-marked alien inside the UFO.

Use the Golden Key Announcement

After the aliens are defeated, wait for the announcement that the Golden Key has been found. Once one player finds it, anyone can open the treasure chest inside the UFO, and every player can receive treasure. You do not need to find a separate key for each player.

Open the Chest and Leave Within 10 Seconds

  1. Enter the UFO after the Golden Key announcement and approach the Alien Treasure Chest.
  2. When E OPEN appears, press E to claim the treasure. The reward can include Cash.
  3. Leave the UFO immediately. Opening the chest starts a 10-second self-destruct countdown.
The E OPEN prompt on the Alien Treasure Chest inside the UFO.
An opened UFO treasure chest and the 10-second self-destruct warning.

Deploy an Alien Robot After Finding One

If you find an Alien Robot after a UFO encounter and it appears in your hotbar, select it and place it on moon dust. It will automatically clean the area around it.

For other units and their uses, see the robots guide.