In the expansive universe that Honkai Star Rail offers up, there’s plenty to get stuck into – including Hidden Quests. Whether you’re a questing fanatic or simply want to get down to turn-based battling, you’re able to find something to focus on.
If you are one of the former and want to get absolutely every quest completed in the game, if you weren’t already aware, there are in fact Honkai Star Rail Hidden Quests that can be uncovered.
As the name suggests, you’re not going to be stumbling across these on your average adventures so knowing how to unlock them is key. To help you with that, we’ll be detailing all of the Hidden Quests in Honkai Star Rail as well as how to unlock each of them so you can get to tackling this pretty extensive list.
As promised, here are all the current Honkai Star Rail Hidden Quests for you to unlock. These are listed in alphabetical order rather than by location, so keep that in mind when travelling around.
80% New Thermal Mining Pickaxe
- Location: Boulder Town, Jarilo VI, southeast of the Goethe Grand Hotel Space Anchor
- How to unlock: Talk to Antonia in the Goethe Grand Hotel Space Anchor
All Is Fair in Love and War
- Location: Near Starwatcher Avenue Space Anchor Central Starskiff Haven, Xianzou Luofu
- How to unlock: Participate and cheat in the Competitive Eater Championship near the Starwatcher Avenue Space Anchor to win
An Odd Meeting Place
- Location: Northwest area of Supply Zone F2, Herta Space Station
- How to unlock: Investigate the area and come back the next day
Bernard’s Signal Log
- Location: Near Watcher Zone Space Anchor in Master Control Zone, Herta Space Station
- How to unlock: Complete the To: The Faint Star quest and then interact with Bernard
Bronya’s Desk
- Location: Near Bronya in Qlipoth Fort, Jarilo VI
- How to unlock: Mess up the Supreme Guardian desk
Cold Dragon Young
- Location: Inside the Fight Club, Jarilo VI
- How to unlock: Listen to the Fanatical Combat Enthusiasts and give them a photo of Cold Dragon Young
Comet Hunter’s Letter
- Location: Supply Zone north of Railway Platform Space Anchor, Herta Space Station
- How to unlock: Collect three paper cranes after completing the Out of Reach quest
Companions in Express
- Location: Astral Express
- How to unlock: Interact with characters after completing their Companion Mission
Cup of “Coffee”
- Location: Western Storage Zone F1, Herta Space Station
- How to unlock: Investigate and then take five sips from the cup of coffee on the table
Dark Fist Tournament
- Location: Near Fight Club Space Anchor in Boulder Town, Jarilo VI
- How to unlock: Secure the invitation inside the Fight Club and interact with the Mysterious Kid located outside
Dazzling Golden Watch
- Location: Administrative District, Jarilo VI
- How to unlock: Interact with the suitcase in the train station and return the item to the owner
Disposable
- Location: Various places, Herta Space Station
- How to unlock: Interact with 6 Herta Dolls.
Domination
- Location: Xianzou Luofu
- How to unlock: Use the Trailblazer to fight against Kafka
Door to a New World
- Location: Supply Zone F2, Herta Space Station
- How to unlock: Investigate the toilet near the Spare Parts Warehouse Space Anchor
Fair and Square
- Location: Near the Starwatcher Avenue Space Anchor, Central Starskiff Haven, Xianzou Luofu
- How to unlock: Take part in the Competitive Eater Championship and offer diplomacy to other contestants
Free Food in the Underworld
- Location: Southeast Boulder Town, Jarilo VI
- How to unlock: Participate in the Competitive Eater Championship by talking to Turner
From Hero to Zero
- Location: Near the Starwatcher Avenue Space Anchor, Central Starskiff Haven, Xianzou Luofu
- How to unlock: Take part in the Competitive Eater Championship and keep eating until you faint
Heron Express’s Gratitude
- Location: Near Starskiff Jetty Space Anchor, Central Starskiff Haven, Xianzou Luofu
- How to unlock: Interact with Ziqiao
Hexanexus
- Location: Various places in Xianzou Luofu
- How to unlock: Complete Hex Club puzzles
Immortal in a Vase
- Location: Near Synwood Pavilion Space Anchor, Exalting Sanctum, Xianzou Luofu
- How to unlock: Break the vase multiple times and put the trash in the vase
Insatiable
- Location: Near Natasha’s Clinic, Jarilo VI
- How to unlock: Acquire the Vomit Inducing Recipe from Maxime and synthesize it
Lā Lá Lǎ Là Land
- Location: Near Golden Theater Space Anchor, Administrative District, Jarilo VI
- How to unlock: Interact with Tamila
Language Module
- Location: Administrative District & Boulder Town, Jarilo VI
- How to unlock: Get the Language Module from Ronald in the Administrative District then give it to Fidora in Boulder Town
Little Robots
- Location: Various locations in Herta Space Station
- How to unlock: Force shut down six little robots
Luminflux Pyxis
- Location: East Artisanship Commission, Xianzou Luofu
- How to unlock: Talk to Master Gongshu and help him with the Luminflux Pyxis
Manhole
- Location: Near Golden Theater Space Anchor, Administrative District, Jarilo VI
- How to unlock: Check the manhole
Mare’s Note
- Location: Master Control Zone, Herta Space Station
- How to unlock: Inspect the bookshelf east of Central Passage Space Anchor for a note. Once found, give the note back to Mare
Memory Bubble
- Location: Various places in Herta Space Station
- How to unlock: Interact with Memory Bubbles
Mini-Neutron Bomb
- Location: West Starskiff Jetty Space Anchor, Central Starskiff Haven, Xianzou Luofu
- How to unlock: Investigate the boxes
Misdelivered Letter
- Location: Administrative District, Jarilo VI
- How to unlock: Collect the four letters in this area then talk to Manya
Mole’s Hide-and-Seek
- Location: Middle Boulder Town, Jarilo VI
- How to unlock: Play hide and seek with Hook and friends
Moral Higher Ground
- Location: Silvermane Guard Restricted Zone, Outpost Space Anchor, Jarilo VI
- How to unlock: Destroy the barrel near the Public Property Protector and defeat the Protector in the subsequent battle
Mutare Magnus
- Location: Near Conclave Hall Space Anchor, Divination Commission, Xianzou Luofu
- How to unlock: Talk to Huuixing and help with divinations
Mysterious Researcher
- Location: Storage Zone F2 near Special Purpose Lab Space Anchor, Herta Space Station
- How to unlock: Investigate the table and talk to the researcher called “this old one”
Natural Immunity
- Location: Boulder Town, Jarilo VI
- How to unlock: During the A Sunset Rendezvous Trailblaze Mission interact with Gertie for the first time
Origami Cranes
- Location: Supply Zone F2, south Electrical Room Space Anchor, Herta Space Station
- How to unlock: Pick up Origami Cranes
Outworlder
- Location: Rivet Town, Jarilo VI
- How to unlock: Pick up the Dirty Ribbon Tied to a Bell from a Warp Trotter then go back near the Entrance of Rivet Town and interact with the Weak Female Voice. After acquiring the Damaged Music Box, go to the eastern area of Rivet Town and talk to the Anxious Girl
Peculiar Glaive
- Location: West Starskiff Jetty Space Anchor, Central Starskiff Haven, Xianzou Luofu
- How to unlock: Interact with the Glaive and an Unfamiliar Man will approach you. Go to the Realm-Keeping Commission Chancery in Exalted Sanctum after talking to the man then talk to Jingyan
Phonograph
- Location: Astral Express
- How to unlock: Interact with the Phonograph and change the music
Pom-Pom’s Troubles
- Location: Astral Express
- How to unlock: Help Pom-Pom when asked
Praise of High Morals
- Location: Various places
- How to unlock: Choose a morally correct dialogue option while in unique NPCand object interactions
Rating Pistol
- Location: Near Gallery of Shadow Space Anchor, Storage Zone F1, Herta Space Station
- How to unlock: Interact with the Rating Gun
Razor Cake
- Location: North Central Starskiff Haven, Xianzou Luofu
- How to unlock: Interact with the Delivery Box
Rightful Rights Society
- Location: Administrative District, Jarilo VI
- How to unlock: Interact with the Phone Booth near the Golden Theater Space Anchor
Seven Errors of Cycranes
- Location: Various places in Xianzou Luofu
- How to unlock: Locate all the missing Cycranes
Seventeen’s Map
- Location: Near Monitoring Room Space Anchor, Base Zone, Herta Space Station
- How to unlock: Collect notes
Shattered Curio
- Location: North East Storage Zone F1, Herta Space Station
- How to unlock: Investigate the front entrance Curio three times
Sheila’s Fate
- Location: Master Control Zone, Herta Space Station
- How to unlock: Interact with Sheila near Herta’s office after completing Guide Paradox
Starskiff Superstition
- Location: North West Central Starskiff Haven, Xianzou Luofu
- How to unlock: Interact with Starskiff
Strange Voice
- Location: North East Storage Zone F2, Herta Space Station
- How to unlock: Investigate the yellow note
Suspicious Scroll
- Location: Near Starskiff Jetty Space Anchor, Central Starskiff Haven, Xianzou Luofu
- How to unlock: Interact and read the scroll
Sweet Pom-Pom O’Mine
- Location: Near Bronya in Qlipoth Fort, Jarilo VI
- How to unlock: Spin the globe and check out what’s located in the North and Northwest area
The Adventurous Moles
- Location: Various places in Jarilo VI
- How to unlock: Finish the main story in Jarilo VI and interact with Julian
The Mandela Effect
- Location: Near Golden Theater Space Anchor, Administrative District, Jarilo VI
- How to unlock: Interact with the man behind the gate of the Golden Theater Space Anchor. Travel away then back and repeat the interaction process four times
The Strange Plant
- Location: South East Base Zone, Herta Space Station
- How to unlock: Water the Strange Plant
Trash Cans In Belobog
- Location: Middle Boulder Town, Jarilo VI
- How to unlock: Complete the quiz from a trash can. The answers to the questions are 20 and 5
Trash Can.. Icon?
- Location: Various places in Jarilo VI
- How to unlock: Interact with multiple trash cans
Trashy Humor
- Location: Several locations
- How to unlock: Synthesize 10 consumable items by using Trash as one of its materials
Treasure Chest Guy
- Location: Master Control & Base Zone, Herta Space Station
- How to unlock: Interact with the guy with a treasure chest. Follow him to the Base Zone and interact with him again
Treasure Chest Magician
- Location: East Goethe Grand Hotel Space Anchor, Boulder Town, Jarilo VI
- How to unlock: Talk to the Mysterious Woman
Triple Authentication Access Room
- Location: Base Zone, Herta Space Station
- How to unlock: Collect three Access Authentication cards in the Herta Space Station
Wanted Posters
- Location: Various places in Administrative District, Jarilo VI
- How to unlock: Remove seven wanted posters
When Breath Becomes Air
- Location: West Storage Zone, Herta Space Station
- How to unlock: Investigate Researcher Eikura Shuu’s monument
Winter City Trap
- Location: Robot Settlement, Jarilo VI
- How to unlock: Listen to Eunice’s rap
As previously stated, there are a whole host of different Hidden Quest on offer in Honkai Star Rail so if you want to get them all ticked off it will take some work. However, knowing you’re getting closer and closer to that 100% should be the motivation you need to get through!
The number of Hidden Quests will likely be updated as the game progresses so keep coming back to this page where we will aim to keep it as fresh as possible with all the new Hidden Quests that become available.
For more Honkai Star Rail, keep reading The Games Cabin.