Dear Proxies, During this event, you can earn generous rewards by raising your City Fund Level in New Eridu City Fund. Unlock the Growth Plan to instantly receive Polychrome ×680 and the exclusive avatar Trick or Treat!. Unlock the Premium Plan to get additional instant rewards including Polychrome ×208, menu decoration set, W-Engine Microcontroller Unit, Resonating Core, and Ether Batteries! After unlocking the Growth Plan or Premium Plan, you can earn exclusive rewards by raising your City Fund Level, including the exclusive namecard Horror Tale: Childhood Edition, W-Engine Microcontroller Unit, Resonating Core, Hamster Cage Pass, and upgrade materials! You can also choose your desired type of upgrade materials to be obtained. Event Duration After the Version 3.3 update – 2026/11/30 03:59 (server time) ※ Purchasing of the Growth Plan, Premium Plan, and Plan Upgrade for the current event will close on 2026/11/30 02:59 (server time). After purchasing is closed, Proxies may still complete Expansion Tasks and claim rewards. Please pay attention to purchase availability times and the event duration. Requirements Unlock Combat Simulation in Main Story Chapter 1 "Cat's Lost & Found" Event Details • At the start of each season of the New Eridu City Fund, the Basic Plan is automatically unlocked. Proxies can complete Expansion Tasks for experience and increase their Fund Level to obtain more rewards. • Proxies who have already unlocked the Growth Plan can purchase the Plan Upgrade to upgrade to the Premium Plan. • The New Eridu City Fund rewards will also include a new W-Engine suited for Armorer Agents. After unlocking the Growth Plan or Premium Plan, reaching City Fund Level Lv. 30, and claiming the Great Builder's Certificate, Proxies can choose one from 7 W-Engines, including the A-Rank W-Engine Bloodmarrow Coffer. The Great Builder's Certificate is a time-limited reward for the current City Fund period and will not be retained for the next New Eridu City fund period. It will expire automatically if not used within the time limit. • Please see New Eridu City Fund in-game for more details.
Zenless Zone Zero · Update notes
Version 3.3 New Eridu City Fund Details
Seasonal free and paid plan rewards.
Purchases close November 30, 03:59 KST; missions and claims close at 04:59 KST.
Notice↗
Featured rewards
Eligibility and play
Unlock the Combat Simulation room during Chapter 1 to access the free basic plan.
Growth tasks raise fund levels.
Paid plans add immediate and level rewards; the Level 30 W-Engine choice is usable only in the current season.
Period and deadlines
The season closes November 30, 04:59 KST.
Paid plan and upgrade sales end one hour earlier at 03:59; missions and reward claims remain available during that final hour.
This notice does not state cash prices.