Honkai Star Rail version 4.0 introduces Planarcadia, a massive futuristic world that will serve as the main destination for the Astral Express crew. This new planet is connected to Aha, the Aeon of Elation, and features multiple districts with unique themes and atmospheres. This guide breaks down all the districts and locations you’ll explore when Planarcadia releases on February 12, 2026.
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Planarcadia Districts Overview
Planarcadia is divided into five main districts, each offering different vibes and experiences. The districts are categorized under two main themes: Beaming; vibrant and lively areas, and Grieving; mysterious and contemplative zones.
| District | Theme | Key Features | Atmosphere |
| Duomension City | Beaming | Neon lights, graffiti, mecha patrols | Urban otaku culture |
| Graphia Academy | Beaming | Campus buildings, balloons, notice boards | Student life hub |
| Dovebrook District | Beaming | Residential streets, commercial areas | Slice-of-life setting |
| Phantasmoon Courtyard | Grieving | Mysterious architecture, dark atmosphere | Hidden secrets |
| World’s End Tavern | Grieving | Moonlit skyline, quiet streets | Contemplative zone |
Beaming Districts
These are the vibrant, energetic areas of Planarcadia where most of the action takes place:
Duomension City
Duomension City serves as the cultural heart of Planarcadia. This district perfectly captures the blend of futuristic technology and modern city life that makes version 4.0 feel unique.
Key features of Duomension City include:
- Giant mecha sentinels patrolling the streets alongside stylishly dressed NPCs
- Working traffic lights and zebra crossings for realistic city atmosphere
- Vending machines scattered throughout the area
- Heavy graffiti and neon advertisements covering buildings
- Strong otaku subculture vibe similar to modern Japanese cities
The subway station in Duomension City deserves special mention. The platform features impressive lighting effects and realistic reflections that make the transit system feel like a functional part of the world rather than just background decoration. This attention to detail shows how much effort went into making Planarcadia feel alive.
Graphia Academy
Graphia Academy is a sprawling campus that will likely play a major role in the version 4.0 storyline. Based on leaked screenshots, this location focuses on academic life and possibly high-tech research activities.
The academy’s central hall is particularly impressive. It features a high ceilinged atrium decorated with colorful balloons, notice boards, and the academy emblem. This space balances discipline and liveliness, positioning Graphia Academy as both Planarcadia’s intellectual core and a glimpse into everyday student life within the futuristic city.
Players can expect storylines involving academic intrigue, research projects, and interactions with student NPCs in this district.
Dovebrook District
Dovebrook District offers a more grounded experience compared to the flashy Duomension City. This residential and commercial area provides a slice-of-life feel amidst all the sci-fi chaos.
What makes Dovebrook special is its natural beauty. The district features:
- Beautiful maple-lined walkways with autumn leaves
- Serene canals running through the area
- Contrast between golden foliage and sleek gray skyscrapers
- Quieter streets perfect for exploration
This district shows that Planarcadia isn’t just cold steel and neon lights. The developers have created visual harmony that makes the world feel more welcoming.
Grieving Districts
These districts have a more mysterious and contemplative atmosphere:
Phantasmoon Courtyard
Phantasmoon Courtyard represents the darker side of Planarcadia. While details about this location remain limited, it falls under the Grieving category, suggesting it holds secrets and possibly plays a role in the main storyline’s conflicts.
Based on the categorization, players can expect this district to feature mysterious architecture and a darker atmosphere compared to the Beaming districts. This location will likely be important for uncovering Planarcadia’s hidden lore.
World’s End Tavern
The World’s End Tavern area creates a completely different mood from the busy streets of Duomension City. This district focuses on quiet contemplation and observation.
Key features include:
- Moonlit skyline views from tavern windows
- Wide, open streets reflecting moonlight on rain-slick stone paths
- Sparse pedestrian traffic creating peaceful atmosphere
- Gentle street lamps lighting the way
- Bridges and quiet neighborhoods visible in distance
Unlike the sensory overload of Duomension City, this district emphasizes restraint and gives the area a cinematic quality. It serves as the perfect place for Trailblazers to gather information, meet local NPCs, and learn more about Planarcadia’s community.
What to Expect from Planarcadia
Planarcadia represents one of the most ambitious maps HoYoverse has created for Honkai Star Rail. The world blends the grand scale of Penacony with the intimate, lived in feel of a modern metropolitan city.
The map is described as massive, with five distinct hubs that each offer unique exploration experiences. From the vibrant energy of Duomension City to the peaceful contemplation at World’s End Tavern, every district serves a purpose in making Planarcadia feel like a complete, breathing world.
When version 4.0 launches on February 12, players will get to experience all these districts firsthand as they participate in Aha’s game and work toward the reward of becoming an Aeon for one minute.
I’m Kelly Hood! I blog about tech, how to use it, and what you should know. I love spending time with my family and sharing stories of the day with them.
