The Phantasmoon Games are a divine ceremony held on Planarcadia in honor of Aha, the Aeon of Elation. Whenever the celestial body known as the Phantasmoon waxes full, eight competitors don soul-bound Masks and vie for the ultimate prize: a face-to-face audience with Aha and exactly one minute wielding the authority of an Aeon. The event serves as the central storyline for Honkai: Star Rail's Version 4.0, titled "No Aha at Full Moon," which launched on February 13, 2026.
Quick answer: The Phantasmoon Games are an irregular, high-stakes competition on Planarcadia where eight Mask-wearing Supplicants accumulate Wishpower through spectacle and creativity; the winner receives the Blessing of Elation and gains Aha's divine authority for one minute, which they can use however they choose.
Origin of the Phantasmoon Games
The competition traces back to a mythic event. Aha once painted a celestial phenomenon called the Phantasmoon across the sky, and in doing so created the first imagenae — creatures sustained by collective attention. Eight Mourning Actors witnessed the spectacle and responded by performing stories so shocking that they hoped to earn an audience with the Aeon. That impromptu performance became the template for every Phantasmoon Games that followed.
The Games occur in irregular cycles, typically every thirty to fifty years, though the current iteration on Planarcadia takes place only about fifteen years after the previous one. No fixed schedule exists; the trigger is always the Phantasmoon reaching full luminosity.
Supplicants and Masks
Before the main competition begins, aspiring participants must survive preliminary trials. Only eight individuals pass, and each claims a Mask. The moment a Mask is worn, it binds permanently to its Supplicant. It reshapes itself to reflect the wearer's soul and dramatically amplifies their innate abilities. Once bonded, the Mask cannot be removed — it becomes an extension of the Supplicant's identity for the duration of the Games and beyond.
The eight-Mask limit is absolute. There are no substitutes, no extras, and no way to transfer a Mask once it has bonded. This hard cap means that every faction interested in the Games must secure a Mask early or be locked out entirely.
How Wishpower works
Wishpower is the currency of the Phantasmoon Games. It is a form of collective attention and emotional resonance generated by spectators — essentially, the more people watching and reacting, the more Wishpower a Supplicant accumulates. This mechanic mirrors the broader culture of Planarcadia, where imagenae survive only as long as they hold public attention and fade into nothing once forgotten.
After claiming a Mask, Supplicants typically announce their participation as loudly as possible to start generating Wishpower. They then channel that energy into increasingly extravagant feats. There are no fixed rules governing what counts as a valid performance. The only criterion is who can attract the most attention. Creativity and spectacle are rewarded above all else, and during the Games, Supplicants are free from external interference — they can act without restriction.
The prize — Becoming an Aeon for one minute
The Supplicant who rises above the other seven receives the Blessing of Elation and a personal audience with Aha. During that meeting, Aha listens to the victor's wish, then grants them divine authority for exactly sixty seconds. For that one minute, the winner effectively becomes the Aeon of Elation, wielding power on a cosmic scale.
The consequences of that minute have historically been wildly unpredictable. Past winners have used the authority in ways ranging from humble to catastrophic:
| Victor | What they did with one minute of godhood |
|---|---|
| Unnamed | Simply wished to glimpse Aha and declined all divine power. |
| Unnamed | Attempted to kill Aha but ended up taking their own life — because for that minute, they were the Aeon of Elation. |
| Unnamed | Rented out the divine authority to grant trivial wishes, causing infants to randomly dye their hair and cockroaches to snore. |
| Unnamed | Unsure of what to wish for, said "whatever," plunging the entire arcadia into chaos. |
A key detail that makes the prize so dangerous: during that minute, the winner is the Aeon. Any attempt to harm Aha is effectively self-harm. And any declaration made with Aeonic authority carries real, far-reaching consequences across star systems.
Rumored past winners and their impact
Beyond the confirmed victors, several other winners appear in less reliable historical records. Their stories are treated with caution within the game's lore, but they hint at just how far the authority of Elation can reach.
An unnamed Doctor of Chaos reportedly tried to create a universe containing deceased, bygone planets. The result flooded the Lafcadio Star System with "Phantoms of the Deceased," and a witness claimed to see the phantom of Isee, a former Astral Express Navigator, briefly appear in Adlivun.
Another winner — whose faction affiliation is disputed among the Cremators, Riddlers, and Pure Children of Anāsrava — triggered a phenomenon called "escaping words." Across multiple star systems, anything recorded as text gained physical form and vanished from books and screens. All information related to "The Eden of Blessed Insight" was erased entirely.
Adrian Spencer Smith is believed to have used the authority to write Fables About the Stars, then vanished for unknown reasons. Oswaldo Schneider is rumored to have won the Games in his youth, though what he did with his minute remains unknown.
The Phantasmoon Games in Version 4.0
In the Version 4.0 storyline, the Astral Express crew arrives on Planarcadia — which also happens to be Navigator Himeko's homeland and the place where the Express reignited its journey fifteen years ago. The Phantasmoon Games serve as the crew's primary objective, but they are far from the only faction with a stake in the outcome. The Masked Fools, the IPC (represented by Madam Pearl of the Ten Stonehearts), the Xianzhou Alliance, and even the Stellaron Hunters — specifically Silver Wolf and Blade — have all converged on Planarcadia.
The story unfolds across Duomension City, where imagenae like the station master Meowton and the train-like Bullet Wyrm live in symbiosis with residents. Hidden entrances throughout the city lead to alternate Duomension spaces, connecting locations like the commercial district of Dovebrook, the art school Graphia Academy, and the Tavern of Elation — the secret gathering place of the Masked Fools.
Elation combat mechanics tied to the Games
Version 4.0 introduces a new combat layer directly connected to the Phantasmoon Games' themes. When you add characters on the Path of Elation to your team or fight specific enemies, you earn Punchlines. As Punchlines stack up and Aha's interest peaks, an Aha Instant triggers — a phase where Aha personally leads all Elation characters in the party to unleash Elation Skills in sequence. More Punchlines mean stronger effects.
After the Aha Instant ends, every Elation character receives a unique Certified Banger buff. The two new 5-star characters introduced in this version — Yao Guang (Physical, Elation) and Sparxie (Fire, Elation) — are both built around generating and spending Punchlines. Yao Guang uses Weal and Woe Lots to control battle flow and can trigger an extra Aha Instant with her Ultimate. Sparxie operates as a streamer, opening a livestream room where consuming Skill Points sends random Gifts that regenerate resources and Punchlines for the team.
The Phantasmoon Games represent one of Honkai: Star Rail's most ambitious narrative setups — a competition with no fixed rules, cosmic-level stakes, and a prize that has historically produced outcomes ranging from absurd comedy to existential catastrophe. With multiple factions converging and the Elation storyline set to span the entire coming year, the Games are just the opening act for what Planarcadia has in store.