All HSR Planarcadia Treasures Chest Locations (June 2026 Guide)

There are 3 Treasure Chests hidden within the Planarcadia sub-area of Penacony Paperfold University College in Honkai Star Rail. To collect them all, Trailblazers must utilize the “Scenery Switching” mechanic to toggle between the Grassland and Snowfield environments, which reveals chests hidden behind environmental barriers.

Below is a quick summary of the loot you can expect to find in this retro-themed zone.

Welcome to Planarcadia, the nostalgic, retro-themed corner of Penacony! While this area inside the Paperfold University College might look small, its “scenery switching” gimmick hides a handful of valuable resources. As a seasoned Trailblazer who has scoured every inch of Penacony, I know how frustrating environmental puzzles can be when you are just trying to hit that 100% exploration mark. In this guide, I will walk you through exactly how to unlock and find every single treasure chest in Planarcadia so you don’t miss a single Stellar Jade.

How to Unlock Planarcadia?

Before we hunt for chests, ensure you have access to the map. Planarcadia is not available immediately upon landing on Penacony.

1. Progress the Trailblaze Mission: You must advance through the main storyline of Version 2.0 and 2.3 (specifically the “Clockie’s Extras” or related Paperfold University quests).
2. Location: Teleport to the “Paperfold University College” Space Anchor. Planarcadia is a distinct room accessible from the northern part of the College map.
3. The Mechanic: Upon entering, you will notice the environment looks like a pixelated game. The core mechanic here is the Scenery Switch. You will find monitors/consoles that allow you to toggle between “Grassland” and “Snowfield.”

If you are struggling with other areas of the University, check out our Penacony Paperfold University College Chest Guide for a full map breakdown.

Planarcadia Chest Locations Walkthrough

The trick to this area is that some chests are invisible or inaccessible depending on which “Scenery” is currently active. I recommend opening your map (Map > Penacony > Paperfold University College > Planarcadia) to track your progress.

Chest 1: The Grassland Entrance Chest

This is the easiest one to grab, but it is easy to run past if you are rushing.

1. Enter Planarcadia from the Paperfold University College main area.
2. Interact with the scenery console immediately to your right (or check your map). Ensure the scenery is set to Grassland.
3. Walk slightly north from the entrance.
4. You will spot a Basic Treasure chest sitting near some pixelated trees.
5. Loot: Open it to grab your first batch of Credits and materials.

Note: If the chest isn’t there, you are likely in the Snowfield scenery. Switch it back!

Chest 2: The Snowfield Secret

This is the chest that confuses most players. It is effectively hidden if you don’t use the correct scenery.

1. Head to the northern section of the Planarcadia map.
2. Find the Scenery Switch console. Toggle the map to Snowfield.
3. In the Snowfield scenery, the layout changes slightly. Head towards the northwest corner of the map.
4. You will see a small nook or path that was previously blocked by “Grassland” obstacles. The Snowfield clears the trees but adds snow mounds—you can walk around these.
5. The Basic Treasure is tucked away in this corner.
6. Loot: This chest typically drops 20 Stellar Jade, making it the most valuable find in this mini-dungeon.

Chest 3: The Eastern Loop

The final chest requires you to backtrack slightly and utilize the full loop of the map.

1. Keep the scenery as Snowfield or switch back to Grassland (depending on your exact pathing, but Grassland is often clearer for this side).
2. Head to the eastern side of the map (right side from the entrance).
3. Follow the path around the perimeter. You are looking for a spot near the “Hero” blocks or NPC interaction points.
4. In the Grassland setting, look behind the large structures. You will find the third Basic Treasure waiting for you.
5. Loot: Another 20 Stellar Jade and upgrade materials.

Pro Tip: Always open your map after grabbing a chest to verify the chest icon has disappeared. If it’s still on the map, you haven’t looted it yet!

Planarcadia Puzzle Mechanics Explained

If you are aiming for 100% exploration in Penacony, understanding the logic behind Planarcadia saves you time elsewhere.

• Scenery Switching: This is a recurring theme in Penacony (like the Dreamscape paintings). Planarcadia simplifies it into a binary switch: Grass vs. Snow.
• Collision Data: The “collision” (what you can walk through) changes. Snow might block a path with drifts but open a path blocked by thick vines in Grassland. If a chest looks unreachable, switch the scenery.
• Visual Cues: Look for “glitchy” pixel effects. These usually denote interactable elements specific to Planarcadia.

For a deeper dive into Penacony’s mechanics, see our guide on How to Solve All Penacony Puzzles.

Why You Should Clear Planarcadia Early?

You might be wondering, “Is it worth it for just 3 chests?” Absolutely. Here is why:

1. Stellar Jade: 40 Stellar Jade might not seem like much, but combined with other Penacony areas, it adds up quickly for your Warping needs.
2. Planar Fission Materials: The area drops Trace Materials essential for leveling up Harmony and Nihility characters.
3. Achievement Hunting: While Planarcadia itself is small, fully exploring it contributes to achievements related to “Penacony Explorer.”
4. Voice Lines: If you are a lore buff, the “Hero” interactions in this retro zone offer charming callbacks to classic RPGs.

Looking for more Jade to pull for the latest characters? Don’t miss our Honkai Star Rail Codes June 2026 page for freebies!

Common Mistakes to Avoid

During my playthrough, I made a few errors that slowed me down. Learn from my mistakes!

• Ignoring the Map: The mini-map in Planarcadia can be deceiving because it doesn’t always update the “scenery” visually in real-time. Always rely on the full map screen to see chest icons.
• Forgetting to Switch: If you leave the area while the scenery is set to “Snowfield,” it might persist. If you return later and can’t find a path, check the console immediately.
• Speedrunning: Running past the console usually means you miss the context clue that tells you what the current scenery is.

Community Resources

Need more help or want to discuss the best builds for the characters you are pulling with your newfound Jade? Check out these official and community hubs:

• Official Honkai Star Rail Website: For patch notes and character reveals.
• r/HonkaiStarRail: The largest Reddit community for discussions, fan art, and guide questions.
• HoYoLAB: The official community app for daily check-ins and interactive maps.
• Honkai Star Rail Discord: Great for finding teammates for Forgotten Hall or just chatting about the meta.

FAQ

How many chests are in Planarcadia?

There are a total of 3 Basic Treasure chests in the Planarcadia sub-area of Penacony.

Do Planarcadia chests respawn?

No, Basic Treasures in Planarcadia are one-time collectibles. Once opened, they disappear permanently.

What is the point of Planarcadia?

Planarcadia serves as a nostalgic, retro-style tutorial zone within the Paperfold University College, highlighting the “Origami” and “Storytelling” themes of Penacony.

Can I miss chests in Planarcadia?

You cannot permanently miss them. You can return to Planarcadia at any time after unlocking the Paperfold University College area to collect them.

Is there a Bountiful Treasure in Planarcadia?

No, Planarcadia only contains Basic Treasures. Bountiful Treasures are typically found in larger overworld zones or specific puzzle rooms.

Conclusion

Clearing Planarcadia is a quick win for any Trailblazer. By simply toggling the Grassland and Snowfield sceneries and checking the north, west, and east corners of the map, you can secure 3 Basic Treasures and a quick 40 Stellar Jade. It is a perfect example of HoYoverse’s environmental storytelling—simple, nostalgic, and rewarding.