Hollow Zero

Lore & Background

The existence of Hollow Zero has fundamentally shaped the society of New Eridu, forcing humanity to rely on Proxies to navigate its depths. It is not merely a dungeon but a living, breathing entity that reacts to the presence of intruders, shifting its layout and spawning increasingly difficult anomalies. The city's survival depends on keeping this specific Hollow contained or navigating it with extreme precision, as a breach in Zero would mean the total collapse of New Eridu's defenses against the Ether.

In Their Own Story

The air inside Hollow Zero tastes like static electricity and old copper. Agent Kael adjusts his visor, the digital readout flickering as the corridor ahead dissolves into a kaleidoscope of neon geometry. There is no floor here, only a suspension of gravity that pulls at the bones. A low hum vibrates through the soles of his boots—the sound of reality tearing apart. Ahead, a massive Ethereal construct coalesces from the fog, its form shifting between a clockwork beast and a weeping statue. Kael grips his weapon, knowing that in Zero, hesitation is not just fatal; it is erasure.

Reader's Guide

Hollow Zero operates as a non-linear labyrinth where traditional navigation fails completely. The atmosphere is oppressive, characterized by a perpetual twilight of shifting colors and the constant hum of distorted audio. Key landmarks include the 'Fracture Gates,' unstable portals that lead to deeper layers of corruption, and the 'Echo Chambers,' zones where past memories manifest as hostile illusions. Anomalies here are unique; Ethereals often possess hybrid forms combining mechanical parts with organic tissue, capable of manipulating gravity or time within localized areas. The environment itself is a hazard, with floors turning into liquid ether and walls shifting to trap explorers. This Hollow connects directly to the main narrative as the primary source of the city's existential threat, serving as the stage for the most critical Proxy missions that determine New Eridu's fate.

Did You Know?

• Hollow Zero is distinct from other Hollows because it acts as a nexus point rather than an isolated pocket of corruption.
• The layout of Hollow Zero changes dynamically, meaning no two Proxy teams will experience the same path twice.
• Ethereals found within Zero often exhibit higher intelligence and more complex attack patterns than those in standard Hollows.
• New Eridu's entire defense strategy revolves around containing the expansion of this specific dimension.

Combat Systems and Character Diversity

Zenless Zone Zero distinguishes itself through a complex yet accessible combat framework where every playable agent is defined by specific attributes and roles. Characters wield one of six elemental powers, including Electric, Wind, Ether, Fire, Ice, or Physical, with some possessing unique special attributes that enhance their base capabilities. These elements are paired with distinct combat styles such as Anomaly, Attack, Defense, Rupture, Support, or Stun, allowing for deep strategic layering during battles. The game also breaks traditional molds by featuring non-human protagonists alongside humans, a design choice made after the team found these concepts fun during planning. Notable examples include Ben Bigger, a grizzly bear; Soukaku, an oni with blue skin; and Billy Kid, a cyborg gunslinger. This variety ensures that the roster feels dynamic and visually distinct from previous HoYoverse titles, offering players a wide spectrum of tactical approaches rather than relying on a homogenous cast of human warriors.

Design Philosophy and Development Process

The creation of characters in Zenless Zone Zero follows a unique "backwards designing" strategy championed by producer Li Zhenyu. Unlike traditional workflows where visual concepts lead, the team prioritizes movement mechanics and weapon functionality first, ensuring that animations dictate the final aesthetic. This approach facilitates seamless communication between scenario writers and artists, allowing for efficient iteration. The process remains fluid well into development; designs can be altered up to the moment of release or even post-launch, as seen with Hoshimi Miyabi's eye model update in Version 1.3. While drawing inspiration from titles like Persona 5 and Street Fighter, particularly regarding combat animations and art style, the developers emphasize a distinct visual identity. Furthermore, faction-specific themes are rigorously applied; for instance, Victoria Housekeeping agents blend Victorian-era servant tropes with horror movie aesthetics, prioritizing high-quality, thematic consistency over sheer quantity of characters.

The Proxy Protagonists and Narrative Core

At the heart of the game's narrative lies Phaethon, a dual-identity alias shared by siblings Wise and Belle, who operate out of "Random Play," a VHS rental store that serves as their base for Proxy work. Players can choose to play as either the older brother or younger sister, both of whom initially guide clients through dangerous Hollows using an HDD system synced with their Bangboo companion, Eous. Their role evolves significantly once the combat avatar Pyrois manifests, allowing them to join the fray directly alongside their hired agents. Supporting this central duo is Fairy, a powerful AI integrated into the store's inter-knot system that assists with Proxy activities as part of a larger network of four AIs. Beyond the main storyline, the game deepens character engagement through "Agent Stories," which provide essential backstory and personality details not fully explored in the primary plot, enriching the world-building around these central figures.

Faction Dynamics and Business Model

The game's ecosystem is driven by a gacha system where revenue primarily stems from time-limited banners offering chances to acquire specific characters using in-game currency. This economic model supports a diverse array of factions, each with unique identities and operational styles. The Cunning Hares, formerly known as Gentle House, operate as a scrappy temp agency taking on commissions larger firms reject. Their roster includes Anby Demara, a former clone soldier captain; Nicole Demara, the financially struggling founder; Billy Kid, an intellectual cyborg obsessed with superhero shows; and Nekomiya Mana, a mischievous Thiren who joins after witnessing their heroic efforts. In contrast, Belobog Heavy Industries focuses on construction within Hollows, featuring characters like Anton Ivanov, a masculinity-obsessed project manager wielding a wrist-mounted drill. These factions provide the structural backbone for gameplay, offering varied narratives and combat synergies that define the player's journey through New Eridu.