
Jojo's Space Mystery Event Guide for Zenless Zone Zero
The Jojo's Space Mystery Event is a Lemnian Hollow Aerospace City event in Zenless Zone Zero. Find out how to participate, how to solve the mysteries, collect evidence about Aliens, and get all the rewards!
Jojo's Space Mystery Event
This event will take place during version 2.1 of the game, from August 13 until August 25, 2025!

Jojo's Space Mystery Event Calendar for Zenless Zone Zero
What is the Jojo's Space Mystery Event About?
During this event you will have to head inside the Lemnian Hollow's Aerospace City and investigate mysterious secret places, as you try to uncover and collect evidence about extraterrestrial life.
How do you Participate in Jojo's Space Mystery?
In order to participate you will need to reach Inter-Knot level 15 and complete Agent Story Mole in the Hole, as well as Season 2 Chapter 1 mission Behind the Curtain.
During the event, you will notice some shady-looking targets showing up around different parts of Zenith Aerospace City. Hunt them down, use your Perception Technique to check them out, then team up with Eous to figure out what is going on and finish the commissions.
Clear all the commissions for the current phase, wait for the timer, and the next phase will open up.
Each completed commission will reward you with a ton of goodies!
In order to start the event, head to the Summer Resort on the boat where Eous is located:

Each day you get access to a specific challenge:

The event menu gives you a few hints about "Alien" activity in the Hollows. Your goal is enter the Hollows and confirm or deny the Bangboo's allegations!
Jojo's Space Mystery Event
The first day you need to check the following Alien activity:
- Alien Ship Control Panel: You need to look out for a control panel that may have been connected to a spaceship.
- Alien's Pet: You need to check out the weird movements that have been spotted inside of various cardboard boxes.

Once you get close to the locations, use your perception on the required objects, as shown in the following photos.
After scanning both objects, you can either teleport back to the event quest, or continue to explore the zone itself. Do not worry, you can come back any time to explore later if needed. The zone will not disappear.
Once back on the ship, talk to Eous and analyse the clues you just picked up! Here are the answers you need to pick:
- Transporting cargo in the Aerospace City
- Mechanical Components
- Porcelumex
- Vigilant Stray Cats
Alien Ship Control Panel

Alien's Pet

The second day you need to check the following Alien activity:
- Alien Artworks: Check for an Alien "Art piece".
- Alien Residence: Check for oddly-shaped boxes.

Once you get close to the locations, use your perception on the required objects, as shown in the following photos.
After scanning both objects, you can either teleport back to the event quest, or continue to explore the zone itself. Do not worry, you can come back any time to explore later if needed. The zone will not disappear.
Once back on the ship, talk to Eous and analyse the clues you just picked up! Here are the answers you need to pick:
- The sky once gazed upon
- An unfathomable Hollow
- Storing Lumite Ore
- Space research and Industrial manufacturing
Alien Artworks

Alien Residence

The third day you need to check the following Alien activity:
- Mysterious Launch Device: Check for the suspicious iron cylinders.
- Alien Architectural Ruins: Check for the mysterious building.

Once you get close to the locations, use your perception on the required objects, as shown in the following photos.
After scanning both objects, you can either teleport back to the event quest, or continue to explore the zone itself. Do not worry, you can come back any time to explore later if needed. The zone will not disappear.
Once back on the ship, talk to Eous and analyse the clues you just picked up! Here are the answers you need to pick:
- Containing household waste
- Researchers
- Decorating the Research Center
- Decorative Flora
Mysterious Launch Device

Alien Architectural Ruins

The fourth day you need to check the following Alien activity:
- Alien Civilization Mural: Check for the mysterious patterns.
- Alien Message: Decode the tag that says "I Was Here".

Once you get close to the locations, use your perception on the required objects, as shown in the following photos.
After scanning both objects, you can either teleport back to the event quest, or continue to explore the zone itself. Do not worry, you can come back any time to explore later if needed. The zone will not disappear.
Once back on the ship, talk to Eous and analyse the clues you just picked up! Here are the answers you need to pick:
- A spinning top picture left by evil forces
- The Exaltists in the Hollow
- Researcher's passionate graffiti
- Normal old paint
Alien Civilization Mural

Alien Message

The last day you need to check the following Alien activity:
- Alien Household Items: Make sure the crates are filled with household items.
- Alien Eggs: Check for Alien eggs.

Once you get close to the locations, use your perception on the required objects, as shown in the following photos.
After scanning both objects, you can either teleport back to the event quest, or continue to explore the zone itself. Do not worry, you can come back any time to explore later if needed. The zone will not disappear.
Once back on the ship, talk to Eous and analyse the clues you just picked up! Here are the answers you need to pick:
- Crafting Porcelume equipment
- A human-run corporation
- Metal alloys and Composite materials
- Stabilizing rocket propulsion direction
Alien Household Items

Alien Eggs

What are the Jojo's Space Mystery Rewards?
During the event, you can earn the following rewards:
- 300 Polychrome
- 10 Official Investigator Log
- 30 Original Chip
- 15 W-Engine Power Supply
- 5 Boopon
- 100 000 Denny
Changelog
- 17 Aug. 2025: Event guide completed.
- 16 Aug. 2025: Event guide updated.
- 15 Aug. 2025: Event guide updated.
- 14 Aug. 2025: Event guide updated.
- 13 Aug. 2025: Event guide updated.
- 06 Jul. 2025: Guide added.

Written by Jaymo, a longtime gamer who spends way too many hours exploring open worlds, grinding in MMOs, and pulling for his favorite gacha characters. He covers news and guides for all kinds of games, and just likes helping people enjoy them more. You can find him hanging out on Twitch or chatting in Discord (jaym0).
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