Clair Obscur Expedition 33: Full Ancient Sanctuary Walkthrough & Platinum Trophy Guide ~ HaploGamingChef

Introduction

Welcome, explorers!
If you’re working toward that Platinum Trophy in Clair Obscur: Expedition 33, you've come to the right place. This guide will take you through everything you need to know about completing the Ancient Sanctuary 100%. We’ll cover every hidden item, shortcut, outfit, merchant, and boss battle in an easy-to-follow route.

Whether you're hunting for all the Luminina Colors, grabbing rare weapon upgrades, or unlocking secret outfits, this walkthrough has you covered. Plus, if you want to find every merchant and important collectible to make your journey smoother, keep reading.

Let's dive right into the Ancient Sanctuary and make sure you don't miss a single thing!

Starting Your Adventure: Unlocking the Shortcut and Gathering Early Loot

Before heading straight to the Ancient Sanctuary, there’s still plenty to do. First, from where you start, head left through the forest.
Stick to the path and you’ll find a stone marker — interact with it to unlock a valuable shortcut. This will make moving around way easier later.

Tip: Make sure you activate the shortcut immediately. It'll save a ton of backtracking.
Quick Loot: After the shortcut, look nearby for a Luminina Color. It’s near some crates guarded by an enemy you can safely ignore. Just grab it and move on.

After snagging the loot, head back across the bridge and begin moving clockwise through the area. Stay on the main path for now; we’ll cover the side areas soon.

Clearing Enemies and Collecting Important Items

As you proceed clockwise, you’ll encounter a small enemy group. These are guarding an item you absolutely want — so take them out.
The enemies aren’t too tough, especially if you’re at the level expected at this point. Take your time, dodge properly, and collect your rewards.

Key Rewards:
- Weapon upgrade materials
- Another Luminina Color tucked away inside a chest

You’ll also stumble upon a merchant close by. Make sure you buy everything available, especially the Artist Wig and the Music Album.
Note: One item remains locked until you add a new party member — don’t worry, we’ll return later for it.

Reaching the Beach and Grabbing a Hidden Outfit

After finishing up near the merchant, head left toward the Red Forest and continue along the path until you start seeing the beach.
This is your next big destination.

Important: There’s a hidden outfit here you don’t want to miss.
Directions: Walk down to the beach, look near the crates to find the Colors of Luminar (sometimes referred to incorrectly as Luminina Colors — both names pop up).

You'll also meet a stronger NPC here who mentions an "ugly" friend located deeper within. Don’t rush forward yet — there’s an obstacle course you’ll need to complete.

Obstacle Course Challenge: Winning the Swimsuit

The obstacle course at the beach isn’t easy, but it's totally doable with a little patience.

Tips for Success:
- Waves can knock you off — be patient and time your jumps carefully.
- Stick to the logs and rotating platforms.
- Always start moving when the path lines up rather than waiting too long.

Once you complete the course and reach the other NPC (the "ugly" guy), you’ll get a reward question.
Answer it by typing 17 to receive a Boy’s Swimsuit Outfit!

Shortcut: After getting your reward, you can just jump into the water to return to the start quickly.

Facing the Strong Enemy for Big Rewards

After your fun at the beach, head back toward the main path, staying on the left side (clockwise direction again).
You'll quickly run into a huge enemy — don’t let the size scare you.

Why Fight?
- Drops a ton of EXP (around 21,000 XP).
- Grants huge loot and weapon upgrade materials.
- Levels up your characters by two to three levels easily.

Strategy Tips:

Dodge his major slam attacks — it’s easier than parrying.
Target his weak spot in the center for double damage.
Use Fire Attacks: He’s vulnerable to burning.
Break his balance fast using Breakers, then spam your heavy skills.
Revival Ready: Keep healing spells and revival items handy just in case.

Once defeated, you’ll get strong revival components and make your next dungeon much easier.

Merchant, Hidden Cove, and Important Encounters

Keep moving past where you fought the big guy and you’ll find a small beach with a hidden merchant.

Good News:
- You can buy everything here immediately (no tasks needed this time).
- Stock up on rare items and accessories while you can.

After shopping, continue towards a small cave entrance you’ll see ahead.
Important:

You can't fully enter the cave yet because of a special barrier, but talk to the purple Cobalt enemy outside.
You need to find five of these purple enemies across the world map to unlock special later-game paths!

Pro Tip: Always speak to strange NPCs even if you can't proceed immediately.

Entering the Ancient Sanctuary: First Steps and Fast Loot

From the red forest, move forward until you reach the main entrance to the Ancient Sanctuary.
This place is huge but don't worry — we’ll keep it straightforward.

First Thing: Follow a strange glowing object ahead.
Break Shields Fast: Use AP shots to weaken enemy shields quickly and make fights easier.
Important: Always use Overload when available to speed up enemy takedowns.

Inside, you’ll collect:

Luminina Colors (lots of them)
Catalyst components for upgrades
Small loot drops for quick boosts

Remember to keep an eye out for glowing purple items; they often blend into the scenery.

Exploring Side Areas and Finding Bonus Items

After clearing the initial room, head down to the left along a rocky stream.
You'll find a glowing item below — Pictus Burning Mark — a very useful upgrade that improves burning attacks.

Next Move: Climb back up and stay on the main path.

Keep following the trail and you'll come across:

A giant statue in the distance (ignore for now, we'll revisit it).
A boy standing alone on the path — talk to him.

He doesn't do much yet, but it’s important for story progression later.

From there, continue walking straight, and you’ll reach the first major boss fight inside the Sanctuary.

Taking Down the First Boss and Scoring a New Weapon

After talking to the boy and moving forward, you'll run into the first Sanctuary boss.

Fight Tips:
- Don’t worry — it’s not super hard if you use Overload early.
- Focus on shield-breaking attacks.
- Dodge instead of parry — it's safer.

When you beat the boss:

You’ll unlock a new weapon.
You’ll also open the way forward to a new checkpoint.

Important: Before rushing ahead, make sure to heal and save at the checkpoint.

Left Path Exploration: Mimic Fight and Huge Rewards

After the checkpoint, turn left, not right.

You'll find a cave entrance leading to hidden loot.
Watch out for a Pantomime (Mimic) sitting up on a rock.

How to Beat the Mimic:

Hit it fast with Earth Magic from Lone.
Let Gustav Overload and smash it while the barrier is down.
Stay aggressive once its shield breaks — it drops fast.

Reward:

Baget Outfit — another cool collectible!

Other Quick Loot in This Section:

Revival Color (extra healing potion)
Luminina Color (grab it when you spot the glowing points)
Several chroma shards (needed for future upgrades)

Pro Tip: Always check corners and edges — hidden loot is easy to miss here!

Cave Exploration: Loot, Battles, and Pictus Upgrades

After grabbing the Baget Outfit, head back into the cave and choose the right-side path this time.

You’ll find:

More chroma shards early on (grab all you can, you’ll need tons soon).
An enemy blocking your way — deal with them carefully.
- Tip: Take out ranged attackers first to make fights smoother.

Once you defeat the enemy:

Check the right corner: There’s a Luminina Color waiting.
Also hidden inside the cave:
- Pictus: Invigorating Start (gives you +2 AP at the start of battles).

Super useful for speeding up fights, especially tougher ones coming soon!

Life Steal Upgrade and More Hidden Collectibles

Moving further through the cave, you’ll find another guarded spot.

Beat the enemy blocking the path (jump attacks work wonders).
Then, grab two major rewards:

Pictus: Life Steal — heals you with every basic attack.
Another Luminina Color near a rock wall.

Both upgrades boost your survivability and make regular encounters much easier.

Shortcut Tip: After collecting everything, circle back to the main checkpoint. You’ll loop neatly around the Sanctuary without missing anything.

Unlocking Shortcuts and Preparing for the Final Boss

Once you circle back to the checkpoint, it’s time to open some shortcuts.

Head to the right and look for a shortcut path — unlock it.
Why bother? It'll save time if you need to come back for collectibles or side tasks later.

From there:

Continue moving forward along the main illuminated path.
Watch for more loot:
- Hidden chroma shards
- Extra healing items near crates

Checkpoint Tip:
Make sure you heal, save, and gear up — you’re about to hit a major boss fight.

Beating the Final Sanctuary Boss (No Spoilers!)

At the end of the illuminated path, you’ll meet the real boss of the Ancient Sanctuary.

Fight Strategy:
- Break shields first with AP shots.
- Use Overload attacks after stunning him.
- Dodge big attacks — some are instant knockouts if you’re not careful.
- Buff with healing light and use ignite spells for damage over time.

When you beat the boss:

You’ll unlock a new ability.
Gain access to major loot drops.
Complete the Ancient Sanctuary's main quest for Platinum progression.

No spoiler: Trust me, this boss feels way tougher than the first — but manageable if you stick to dodging and timing.

Secret Tunnel, Hidden Pictus, and Extra Loot

Before you leave the sanctuary, don’t walk out just yet.
From the boss area, turn left and explore the nearby zone.

You’ll find a Luminina Color tucked behind some rocks.
Keep moving up the slope and check the right side wall — there’s a small crawlspace you can easily miss.

Crawl through it and grab:

Pictus: Stunned Enemies Take +30% Damage
(Super useful in stun-based builds later in the game)
An Energy Color Shard, which boosts item strength.

Pro Tip: Don’t leave this pictus behind — it’s one of the most overlooked power-ups in the game!

Exiting the Sanctuary and Reaching the Next Village

Once you’ve cleared the tunnel:

Exit back through the forest path.
You’ll land in an open world section with red trees and rocky terrain.
Head right and you’ll quickly reach the next checkpoint and the village of Gestual Dwarf.

Along the way:

Look for another Luminina Color near a dead robot sculpture.
The transition to the village marks the end of Ancient Sanctuary exploration.

And with that — you’ve 100% completed this region of Clair Obscur: Expedition 33!

Key Takeaways for 100% Completion

✔️ All Luminina Colors collected
✔️ All merchants discovered
✔️ Secret outfits (Boy’s Swimsuit, Baget Outfit) unlocked
✔️ Pantomime defeated
✔️ All Pictus upgrades obtained
✔️ All shortcut paths activated
✔️ Both major bosses cleared
✔️ Progress to next region unlocked

Wrap-Up

That’s everything you need to fully complete the Ancient Sanctuary in Clair Obscur: Expedition 33. From unlocking all shortcuts to taking down both bosses, collecting every Luminina Color, and grabbing hidden outfits and Pictus upgrades, this route ensures you don’t miss a thing on your way to the Platinum Trophy.

Stay tuned for the next region guide as we dive deeper into the world of Expedition 33. Until then, keep exploring, leveling up, and collecting every last secret!

If this guide helped, feel free to share it with other adventurers and subscribe for more walkthroughs.

FAQs – Clair Obscur: Expedition 33 Ancient Sanctuary Guide

Q1: Where can I find all Luminina Colors in the Ancient Sanctuary?
You can find them in side caves, hidden tunnels, boss arenas, crate areas, and near shortcuts. This guide shows every location in a clockwise route.

Q2: How do I unlock secret outfits in Expedition 33?
Secret outfits are tied to optional tasks like completing the beach obstacle course or defeating a Pantomime enemy in a hidden cave.

Q3: What are the best weapon upgrades in the Ancient Sanctuary?
After defeating certain enemy groups and bosses, you’ll get rare upgrade items — including enough to push your swords to level 6.

Q4: Can I miss any merchants in the Ancient Sanctuary?
Yes. A few merchants are placed off the main path and in hidden beach/cave areas. This guide helps you locate every one of them before advancing.

Q5: Is it possible to complete the Ancient Sanctuary 100% in one visit?
Mostly yes, but some areas and collectibles are locked behind late-game progress or specific characters. This guide marks those for follow-up later.

🎮 Meet Haplo Gaming Chef 🍳

Level 99 Kitchen Warrior here! I'm on a quest to transform your gaming sessions into epic culinary adventures. When I'm not farming rare ingredients in MMOs, I'm crafting real-world recipes inspired by your favorite video games.

Specializing in: • Game-inspired recipe creation • Cooking quest guides • Power-up snacks for gaming sessions • Achievement-worthy meal prep

Join my party as we explore the delicious intersection of pixels and plates. Whether you're a casual foodie or a hardcore gamer, there's always room at my crafting table! #Gaming #GamingGuides #GamingChef #HaploGamingChef For More Visit: https://haplogamingchef.blogspot.com/

Follow Me!

https://bsky.app/profile/haplogamingchef.bsky.social
https://www.threads.com/@haplogamingchef
https://www.twitch.tv/haplogamingchef
https://www.pinterest.com/haplogamingchef
https://www.youtube.com/@HaploGamingChef
https://www.tiktok.com/@haplogamingchef
https://flipboard.com/@HaploGamingChef
https://x.com/HaploGamingChef
https://www.instagram.com/haplogamingchef
https://www.facebook.com/HaploGamingChef
https://www.linkedin.com/in/haplogamingchef
https://haplogamingchef.blogspot.com
https://www.tumblr.com/haplogamingchef
https://medium.com/@haplogamingchef
Google Business Profile: https://g.co/kgs/6nqgw9H