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Observer of the Crimson Moon

1 in 444,444#188 rarest of 284 obtainable auras.
EventRed Full Moon · Biome-exclusiveObtainable
Observer of the Crimson Moon

How many rolls Observer of the Crimson Moon takes

Your luckExpected rolls
1×444,444
2×222,222
5×88,889
10×44,444
100×4,444

Expected rolls = N ÷ luck. Each roll is independent, so it can take far more or far fewer. Open in the calculator →

Aura facts

Rarity

1/444.4K

Tier

Event

Biome

Red Full Moon

Biome-exclusive

Added in

Eon 1-25

Inside Red Full Moon the wiki lists: 1 in 444,444

Credited on the wiki to: aakairoo, ohlyyxyyz

About Observer of the Crimson Moon

Event tier by label, rollable by condition: Observer of the Crimson Moon belongs to a special biome, the Red Full Moon (shown on the wiki with its Japanese name), and drops there at 1 in 444,444. There is no other source, so about 444,000 rolls at 1x luck or roughly 44,000 with 10x are needed once that biome is active. The Sol's RNG Wiki dates it to 11 July 2026, Eon 1-25, and credits aakairoo and ohlyyxyyz. It is listed as obtainable in that biome, but the wiki page is the place to check current access.

The design is a ritual of eyes. The user levitates in dark red fog, wields a red energy sword and holds a red moon with an eye that feeds dark energy into the arm. A ritual circle rotates beneath, the same eye symbol glows in their own eye, a dark energy circle shows through the chest and small eyes and crimson lightning flicker around.

Its font is Noto Serif SC.

Auras with similar odds (Event)

Frequently asked questions

How rare is Observer of the Crimson Moon in Sol's RNG?

The Sol's RNG Wiki lists Observer of the Crimson Moon at 1 in 444,444, in the Event tier. With base luck that averages 444,444 rolls; with 10× luck, about 44,444.

Can you still get Observer of the Crimson Moon?

Yes. The wiki lists it as obtainable, and it is tied to the Red Full Moon biome.

Data taken from the Sol's RNG Wiki (CC BY-SA), organized with AI assistance; nothing here is tested in the game; wiki read on 2026-10-24.