Zenless Zone Zero’s New Eridu City Fund: Is the Growth Plan

New Eridu City Fund Event: Are the Premium Rewards Worth It?

With Zenless Zone Zero’s latest patch (Version 2.6) now live, one of the season’s most scrutinized offerings is the New Eridu City Fund—the game’s evolving take on “battle pass” reward tracks. For both free players and spenders, the fundamentals of the Growth Plan and Premium Plan drive critical questions: which plan offers the best value, and will mid-season upgrades alter your pull or resource priorities? Here’s what to know, what to chase, and what to skip as this City Fund cycle unfolds.

At a Glance: Key Dates & Highlights

• Event duration: After Version 2.6 launch to 2026-03-23 03:59 (server time)
• Purchase cutoff: 2026-03-23 02:59 (server time)
• Eligibility: Unlock Combat Simulation in Main Story Chapter 1 “Cat’s Lost & Found”
• Plans: Basic, Growth, Premium (with upgrade path)
• Instant rewards: Up to Polychrome ×888, exclusive avatar ("All Magic Is a Miracle"), menu decor, W-Engine Microcontroller Unit, Resonating Core, Ether Batteries
• Level 30 reward: Great Builder’s Certificate (season-limited, expires after event)

City Fund Plans – Breakdown & Value Assessment

The New Eridu City Fund operates with three plan tiers:

• Basic Plan: Unlocked by default. Provides a steady stream of core resources (credits, materials) as you level up via Expansion Tasks.
• Growth Plan: Unlocks for a premium currency fee. Adds a surge of Polychrome ×680 immediately, plus an avatar exclusive to this period. Further levels unlock extra upgrade materials—with tailored selection for your favorite agents.
• Premium Plan: A further upgrade. Additional Polychrome ×208 on unlock, plus menu decorations, another W-Engine Microcontroller Unit, extra Resonating Core, and Ether Batteries. Can only be accessed after Growth Plan purchase (or as a one-time upgrade).

Table: Plan Comparison (Summary)

	Basic Plan	Growth Plan	Premium Plan
Unlock Cost	Free	Paid (exact cost not stated in official materials)	Upgrade from Growth Plan (cost not stated)
Immediate Rewards	—	Polychrome ×680, Avatar	Plus Polychrome ×208, menu decor, extra mats
Highest Level (30) Reward	—	Great Builder’s Certificate	Great Builder’s Certificate
Materials Type	Fixed	You choose type	You choose type

What’s Unique?
– Great Builder’s Certificate: Season-limited, must be claimed if you reach City Fund Level 30. Expires if not used by the season end—can’t carry over.
– Exclusive Avatars/Decor: Themed for collection-driven players.

How Does This Impact Your Weekly Priorities?

For most players—especially those optimizing for Polychrome (ZZZ’s premium summon currency)—the Growth Plan gives the highest up-front return. The Premium Plan tacks on event-limited cosmetics and niche materials, relevant mainly for advanced account builders or those aiming for maximum efficiency.

Expansion Tasks: Completing Tasks Efficiently

• Tasks: Daily and weekly Expansion Tasks refresh; core loop is familiar from previous gacha passes. Complete them for Fund XP.
• F2P/Low-Spend: Can max out the Basic Plan with regular daily/weekly play; the Growth Plan rewards are locked behind payment, but are entirely side-grade if Polychrome isn’t urgent.

Event Strategies: Recommendations by Player Type

F2P / Tight Budget:
– Skip paid plans unless you’re seeking Polychrome for a specific upcoming banner (see below for optimal spend spacing). Still benefit from the Basic Plan materials for account progression.
– The avatar, menu deco, and namecard are aesthetic only—valuable only if you prioritize cosmetics.

Dolphin/Optimal Spend:
– Growth Plan offers best Polychrome-to-cost ratio—especially if purchased early in the event for more time to claim level rewards.
– Premium Plan is largely for completionists or those wanting every upgrade mat type; extra Polychrome is a modest bonus.

Whales:
– Premium Plan provides max completion and convenience, with multiple exclusive items per season.

Polychrome Planning — Should You Buy for Upcoming Banners?

Many players are eyeing the timing of this Fund cycle with notorious rate-ups looming. Here’s the projected cadence based on official info (dates padded for global server time discrepancies):

Patch Phase	Banner Likely to Begin	Notable Units (Unconfirmed—subject to change)
Version 2.6 Start	Patch launch	[Check EarlyGG’s banner tracker for live lineup]
Mid-cycle	2–3 weeks post-launch	[Next Limited Focus; check EarlyGG]
End of City Fund	~2026-03-20	[Anniversary/Speculated Unit; see below]

• Pity System: As always, Polychrome accrual from City Fund is best slotted toward must-have units. If you’re within 10-20 pulls of pity on a favorite, the Growth Plan’s immediate payout may be compelling.

• Best Practice: Use the event as a supplement, not a core source—track daily/weekly resource inflow and only top up if your target banner is within this cycle.

Great Builder’s Certificate – What Does It Actually Do?

The Great Builder’s Certificate is a one-off, time-limited reward for reaching City Fund Level 30 this season. According to official details, it must be claimed and spent within the event timeframe—it does not carry over. Uses include claimable high-grade materials, but the full list is only visible in-game. If you’re pushing for meta units or high-tier gear, make sure to finish the Fund before 2026-03-23 03:59 (server time).

Visual suggestion: Show the in-game City Fund progression screen, with avatars and premium perks highlighted. [Alt text: Screenshot of Zenless Zone Zero’s City Fund menu, showing plan tiers, rewards, and avatar icons for accessibility.]

Preparation Checklist: What To Do Before and After the Patch

Pre-Patch:
– Unlock Combat Simulation from Main Story 1 if not already completed (required for Fund access).
– Stock up on daily/weekly Expansion Tasks; track extra energy usage for Fund XP maximizing.

Day-1:
– Review which plan tier you want (buy early if committing for maximum returns).
– Prioritize core agent/weapon upgrades if you’ll claim materials from the Fund—choose your type wisely.
– Set reminders for City Fund Level 30, so you don’t miss the Builder’s Certificate expiration.

Unconfirmed — Subject to Change

• Banner lineups and new W-Engines have not been fully detailed for the entire season. EarlyGG will update as new banners and units drop.
• Speculation around upcoming event reruns or added City Fund premium tracks has not been substantiated in official releases.

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Bottom Line & What’s Next

The New Eridu City Fund in Zenless Zone Zero’s Version 2.6 sticks to gacha standards—a strong value pass for collectors and those looking for a modest Polychrome boost ahead of key banners. F2P and low-spend proxies should focus on task completion and treat paid passes as opportunistic, not mandatory. Premium cosmetic offerings remain the lure for whales and collectors.

EarlyGG will cover any changes to banner schedules, City Fund tweaks, or balance patches as official news emerges. For a live tracker on banners, check EarlyGG’s dedicated [Zenless Zone Zero banner hub]. For a full breakdown of agent synergy and optimal materials, visit our [meta team analysis] page.