Level 99 and a weapon at 33: the only part of the platinum that is grind

Six progression trophies: the first weapon upgrade, a weapon at level 33, Lumina and levels 33, 66 and 99. Which material is always missing, why level 99 is best left for just before Simon and where levelling is fastest.

Completing them unlocksWeapon Upgrade trophyWeapon UpgradeBronze70.30%

And it counts towards Weapon Mastery, Lumina, Expeditioner, Trailbreaker, Survivor, required for the platinum.

The EveryTrophy team1 min readPublished on 28/09/2026Updated on 28/09/2026Covers 6 of the 56 trophies

The Curator, weapons and Lumina

It all starts after Flying Waters, when the Curator moves into the camp. With him you upgrade weapons with materials — Weapon Upgrade (70.3%) does not count the level-ups that duplicate drops give — and spend Colour of Lumina for Lumina (69.8%).

The hard one is Weapon Mastery (26.6%): taking a weapon to level 33. Each band of levels asks for a different Chroma Catalyst, and the final level requires a Perfect Chroma Catalyst, which cannot be bought and only comes from endgame content such as the Serpenphare, Clea’s zone or the Endless Tower. Save the first one for a single weapon, that of the character you will use most against Simon.

Levels 33, 66 and 99

All three count with a single character. Expeditioner (55.7%) comes around the middle of the story; Trailbreaker (34.8%), near the end if you do optional content in Act III. Since update 1.4.0 both pop even if you are already past the required level.

Survivor (14.0%) is another matter: with everything else done you sit around level 90, and the last levels each ask for millions of experience. The most common method is repeating enemy groups in Simon’s zone, because killing a group without taking damage multiplies the experience it gives. The alternative is New Game+, where enemies level up, but it is much slower.

Fact

Leave level 99 for just before Simon: the grind serves both, and the zone where you farm is his.

The trophies involved

Each one links to its section inside the full Clair Obscur: Expedition 33 trophy guide.

Weapon UpgradeBronze70.30%
Upgrade a weapon once.
Original name: Weapon Upgrade
Weapon MasteryBronze26.60%
Fully upgrade a weapon.
Original name: Weapon Mastery
LuminaBronze69.80%
Consume a Lumina point.
Original name: Lumina
ExpeditionerBronze55.70%
Reach level 33.
Original name: Expeditioner
TrailbreakerBronze34.80%
Reach level 66.
Original name: Trailbreaker
SurvivorBronze14.00%
Reach level 99.
Original name: Survivor

Other Clair Obscur: Expedition 33 guides

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