Planarcadia is having an area expansion in Honkai: Star Rail version 4.1, with three new areas to explore. In addition to missions, Trailblazers will have a long list of new achievements for them to collect. This guide list out all the new achievements in Honkai: Star Rail 4.1 as we further unlock new area in Planarcadia!
- The Rail Unto the Stars — 8
- Eager for Battle — 7
- The Memories We Share — 10
- Fathom the Unfathomable — 14
- 26) A Land Called Arcadia
- 27) Azure Lotus Heartfire
- 28) Then Comes the Workday
- 29) “No Entry”
- 30) Skinner’s Pigeon
- 31) Time to Combine!
- 32) Pearluxe Fire-Control Array
- 33) A Cat’s Golden Rule
- 34) Mega Mechatron’s Ultimate Formation of the Century
- 35) Mega Mechatron Talent Scout
- 36) Burning Passion
- 37) From the Abyss to the Sky
- 38) Arcadia Variations: Tin Man
- 39) Arcadia Variations: Shapeshifting Furbo
The Rail Unto the Stars — 8

For achievements #1 to #8, you can get them all by completing the new Trailblaze Mission.
1) In the Name of the Father
Every kid’s worst nightmare: explaining your job to your parents
※ Give Himeko’s father a tour of the Express
2) Catch Me If You Can
Social identity is but one of the infinite masks we wear
※ Take a photo with Miss Nihilux
3) I’ll be the Head!
Behold the mechatron, standing tall astride the earth!
※ Assemble your very own giant mechatron and battle against the Daybreak Squadron
4) The Pursuit of Happyness
Everyone seeks happiness, but who gets to define what it is?
※ Finish the investigation into the Research Society of Happy Smiles
5) Dream Eater
A creator is a creature that dreams while wide awake
※ Unmask the author of Fluffy Across the Blue at the publishing house
6) The Hellbound Express
???
※ Reach a hidden, abandoned station
7) Lucky Chip
Thanks to the friend who gave me the chip
※ Return to reality with Pearl’s help
8) Phantasmoon’s Ravings
THEY say it, you hear it
※ Listen to the Phantasmoon’s crazed declaration
Eager for Battle — 7
9) The Three Musketeers
Win 1 battle(s) using a team comprising Ashveil, Rappa, and Boothill.
10) Justice Delayed, Not Denied
Ally teammates attack a “Bait” target 5 time(s) without triggering Ashveil’s Follow-Up ATK
11) Two Birds with One Strike
Use the ally character Ashveil to defeat 2 enemies with a single Follow-Up ATK
12) And the Sun Rises

During combat against the Daybreak Squadron, hit them with a specific Type attack while they’re in the “Daybreak Forcefield” state to trigger an immediate action

There are multiple variants of Daybreak Squadron, so take your time to read their ability first. The one I’m facing is Daybreak Squadron: Cinderborne. Once it enters the “Daybreak Forcefield” state, it must be attacked by a Physical-Type attack so it will immediately take action. That’s also how you will get the achievement.
13) Beginner’s Luck Over Skill
In the battle against the SD Civilian Mechatron, have it eliminate 1 enemy target(s).
SD Civilian Mechatron can enters the “Strength Boost!” state. In this state, it will immediately takes action after being attacked. If you use non-Elation DMG, it has a low chance to attack a friendly unit, and if you use Elation DMG, it will always attack a friendly unit. That’s not all, the damage it does to friendly unit need to defeat them immediately.
14) Every Drop Counts

In the battle against Alloy Mechatron: King Pom-Pom, remove its “Steam Wash” state
Pom-Pom’s Steam Wash state can be seen by the 2 stacks of Lasting Antibac below its HP bar. Once you remove the Lasting Antibac, Pom-Pom will exit the Steam Wash state.


To remove the stacks of Lasting Antibac, you need to accumulate 20 Punchlines for Alloy Pommy to use its Enhanced Basic ATK on King Pom-Pom. Each Enhanced Basic ATK will remove 1 stack of Lasting Antibac. This achievement can be done in both Phase 1 and Phase 2 of King Pom-Pom.
15) Bubble Trendsetter


Trigger the “Shiny” effect of Potent Foam Soap at least 3 time(s) in a single battle against Alloy Mechatron: King Pom-Pom

This ability is only available in Phase 2 of King Pom-Pom. Wait until Pom-Pom uses Potent Foam Soap on your team and inflict them with “Work Is Bliss!” effect. Then, use Basic ATK to trigger the “Shiny” effect. Do this 3 times in a single battle to get this achievement.
The Memories We Share — 10
16) Making it Real
Show your respect to Silas with a full-power strike in the combat test sandpit
17) Faking it Real
Choose to protect Silas’s dream in the combat test sandpit
18) Be Responsible for Your Creation
Drag the slacking Nihilux back during the book signing
19) This is All Part of the Fiction
Have Furbulitzer bravely take on duties that aren’t its own during the book signing
20) Looking the Part
Offer advice to the hesitant mechatron outside the Mechatron Modification Room
21) A Nightmare for the Wicked
Talk to Caenis (Alt) and Thunderarch separately
22) Love in the Time of Arcadia
Watch as passers-by share their feelings on the street
23) Matchless
Defeat all your opponents in the Club Showdown
24) All Units, Stand By!
Unlock all the abilities in Battalion Buildup
25) An Enemy from Above
Complete the Demon King Challenge
Fathom the Unfathomable — 14
26) A Land Called Arcadia
Collect all 6 surviving pages of Floating Grease Chronicles and complete all collection objectives in the world of “Floating Grease Chronicles” within Duomension City
27) Azure Lotus Heartfire
Smash all heliobi during “Jump Time” on Lookout Cloud
28) Then Comes the Workday

“Defeat” The Great Septimus again during “Jump Time” on Lookout Cloud
Complete the new Trailblaze Mission and you will automatically get this achievement.
29) “No Entry”
Sneak into the staff office in the Pearluxe Tower
30) Skinner’s Pigeon
Trigger the button that pops out Gold Coins 10 times in a row in “Interplanar Jump!”
31) Time to Combine!
Find the hidden path to reach the MagiMech’s chest
32) Pearluxe Fire-Control Array
Defeat the giant Hedgehogae in “Interplanar Jump!” at Pearluxe Tower
33) A Cat’s Golden Rule

Catch all the Pixcoins tossed by the cat during mechatron assembly
Talk to Aste in the spot above at Pearluxe Tower to enter the mechatron assembly again (choose “I want to build another one”). And go ahead until you reach the cat block like in the image above.

Take the Pixcoins right below it, and jump to make the cat block longer. It will then spit out many Pixcoins, in which you need to collect them all to get this achievement.
34) Mega Mechatron’s Ultimate Formation of the Century

Destroy all destructible structures in the mechatron battle studio
When you’re controlling the huge mechatron, destroy all the destructible buildings to get this achievement. If you already completed that section, you can go to the spot marked above and talk to Aste at Pearluxe Tower to enter the mechatron assembly again (choose “I want to build another one”).
35) Mega Mechatron Talent Scout

Find four “unusual-looking” mechatrons
Go to the location above in Pearluxe Tower, and interact with 4 mechatrons to get this achievement.
36) Burning Passion

Complete the “flaming lance, forward” challenge during Star Rail FEST
Complete the new Trailblaze Mission and you will automatically get this achievement.
37) From the Abyss to the Sky

Re-enact “parting the waters” in the Xianzhou Exhibition Area during Star Rail FEST
Complete the new Trailblaze Mission and you will automatically get this achievement.
38) Arcadia Variations: Tin Man
Play a Bizarre Melody to find the mysterious creature hiding in the Pearluxe Tower
39) Arcadia Variations: Shapeshifting Furbo
Play a Bizarre Melody to find the mysterious creature hiding on Lookout Cloud Station



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