Zenless Zone Zero 2.5 Co-OP Guide

ZZZ recently released its latest Version 2.5. This version is called To be Fuel for the Night and contains one of the biggest updates. The entire community is going to shift with this event. Zenless Zone Zero Co-Op multiplayer is being added to the game. So, players who want to play with their friends finally have a chance. However, for now, this update is only going to be temporary. Consider this a trial for ZZZ Co-Op mode.

Therefore, in this ZZZ Co-Op guide, we will cover everything coming in this version. Players will also get to try the Zenless Zone Zero the Divine Maze in this update. Here, we will also cover the new Chain Overdrive system coming to the game.

Event Schedule and Participation Requirements

The co-op experience in ZZZ Version 2.5 is tied exclusively to the Joint Investigation: The Divine Maze event. It is important to note that since server times differ across the globe, Proxies in Asia will access the event first, followed by Europe and finally North America.

Event Timeline:

• Start Date: January 3, 2026, at 10:00 AM (Server Time).
• End Date: January 22, 2026, at 03:59 AM (Server Time).

Entry Requirements:

• Inter-Knot Level: You must reach Level 20 or higher.
• Story Progress: Complete Main Story Chapter 1 – Intermission.

How Co-Op Works in ZZZ Version 2.5

Unlike the standard single-player combat where you swap between three Agents, the Zenless Zone Zero co-op event places you in a three-member squad where each Proxy controls one individual Agent. This shifts the gameplay from “Quick-Swap” management to individual role mastery and team coordination.

The Role System

To ensure team balance, the co-op lobby includes role-based tags to help players coordinate their picks. You will see labels such as:

• Damage Dealer (DPS): Focused on dealing massive Honed Edge or elemental DMG.
• Daze Master (Stun): Focused on stunning the enemy to trigger team-wide combos.
• Support: Focused on ATK buffs, Energy Regen, or healing.

Chain Overdrive: The New Combat Meta

In single-player, Chain Attacks are triggered manually by the player when an enemy is Stunned. In co-op, this has been reworked into the Chain Overdrive system. This allows the entire team to unleash powerful combos together.

1. Stunning the Enemy: Standard Daze-meter depletion.
2. Anomaly Effects: When an enemy is suffering from elemental status effects (like Freeze or Burn).
3. Chain Time State: Specific windows opened by certain Agent abilities.

Survival and Revival Mechanics

Combat in the Divine Maze can be brutal, especially on High Risk and Nightmare difficulties. If a teammate falls, the match doesn’t end immediately.

• The Healing Link: If a Proxy is downed, you can approach them to create a “Healing Link.” This will slowly revive them and bring them back into the fight.
• Shared Items: There are special tactical items shared by the party that can drastically reduce revive time.
• Spectator Mode: Dying will simply put you in spectator mode. So you will have to wait for your friends to clear the floor. They can then bring you back once a floor is done.

Rewards: Why You Should Participate

Players should know that this ZZZ Co-Op mode is only a test run. HoYoverse is testing this mode and making sure it works. Therefore, players who take part in Zenless Zone Zero the Diving Maze, will get rewards. These will be some major rewards that will change your build.

Reward Category	Specific Items
Exclusive Cosmetics	Namecard (Maze Exit)Silver Thread of Dreams (Title)Thin Line of Reality (Titles)
Currency	Polychromes (Used for Signal Searches).
Upgrade Materials	Senior Investigator Logs, Original Chips, and Dennies.
Event Shop	Use “Investigation Merits” to buy limited-time W-Engines.

Tips for Co-Op Success

Co-op with your friends can be very fun. However, players should follow a few rules to make the experience even better. You have to agree on these rules together to ensure a fun time for all.

1. Coordinate with Zhao: Version 2.5 gives every player a Free S-Rank Agent Zhao (Ice-Defense). Her ability to restore team HP and boost ATK makes her the MVP for co-op survivability.
2. Respect the Host: The player who is hosting can select the difficulty. The game currently has three difficulty levels. Players should consider all of their skill levels before picking an option. Make sure to pick the level that suits all players.
3. Use the Proxy Outpost: A new social feature in 2.5, the Proxy Outpost, acts like a guild system. You can find some amazing players here. These players usually take the game seriously. So you can have a great teammate when going for your run.

Get Ready Gamers!

ZZZ To Be Fuel for the Night is one of the biggest updates to the game. Making the players Co-Op will attract even more gamers. You will have people joining up with their friends and grinding. Zenless Zone Zero is going to get even better. We also recommend players try out the Divine Maze. This Maze contains some very powerful rewards. So gather your friends and dive right in.

FAQ

Can I play co-op with only two people?

No, the Joint Investigation: The Divine Maze event is designed specifically for three-member squads.

Will co-op become permanent after January 22?

While this specific event is limited-time, the developers have stated it is a trial for future co-op development. Player feedback will determine if and when it returns as a permanent feature.

Can I use my Bangboo in co-op?

Yes, Bangboos like the new S-Rank Sprout can still provide supplementary chain attacks during the match.

Does my Inter-Knot level matter for stats?

Your Agent’s stats are based on your own progression (level, W-Engine, Drive Discs), but the event also offers temporary “Cards and Emblems” for stat boosts during the run.

Getting new items and characters in ZZZ requires credits. This is why we suggest players check out the exclusive store on our site. Here you can find some of the best deals on Zenless Zone Zero top up. However, there is an easier way to get a few items and skin. You can simply get on our Zenless Zone Zero accounts. These accounts are stacked with premium gear from the game.