Zenless Zone Zero: When Sandwiches Come A Knockin' Event Guide

HoYoverse has launched the official “When Sandwiches Come Knocking” event in Zenless Zone Zero 1.4, which requires players to help operate the new food truck in Lumina Square. In exchange, they can earn many rewards, including Polychrome, Denny, and other in-game resources.

This guide explains everything you need to complete the When Sandwiches Knock event in ZZZ.

Zenless Zone Zero When Sandwiches Knock Duration and Requirements

The “When Sandwiches Knock” event began with the Zenless Zone Zero 1.3 update on December 4, 2024. It will be available for 12 days and offers exciting rewards such as Polychromes, Bupons, and a Special Souvenir Treat. The event will end exactly on December 16, 2024.

The event “When Sandwiches Knock” can only be participated in by those who have completed Chapter 2 of the Intermediate Story and reached Internode Level 30. You can start it by talking to an NPC named Haddy at the Random Play video store in New Eridu.

How to Complete the When Sandwiches Knock Event in Zenless Zone Zero

According to Heidi, there is a new food truck in Lumina Square. Go to its location and talk to the food truck chef to access various food delivery orders. During the When Sandwiches Come Knocking event, your job will be to take orders from customers and serve them their choice from the menu.

Submit the correct order and deliver it to customers (Image via HoYoverse)

Then confirm the order with the chef and set up delivery routes for One-Dennyboo when the food is ready. Setting up the correct route will require solving a mini Bangboo puzzle. Simply click on the gears on the screen to complete the chain.

After completing the mini-game, Bangboo will activate and follow you. Guide the creature to the customer, interact with it to complete the delivery. Then take a photo of Bangboo with the customer and return to the food truck.

Check your score to complete orders in the When Sandwiches Come Knocking event in ZZZ. To make sure you don't miss any details, refer to the tips at the top of the screen when placing orders, especially if you've forgotten a conversation with a customer.

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