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Co-Op Mode is unlocked after reaching Adventure Rank 16 and completing Archon Quest Prologue: Act I - The Outlander Who Caught the Wind. In Co-Op Mode, a Party of up to four Travelers can adventure simultaneously to take on Domains, participate in certain Events, and explore the open world of Teyvat together.

Cross-play between the PC, Mobile (iOS and Android), and PSN platforms is possible as long as the players are on the same regional server (NA, EU, Asia, or SAR).

Co-Op Mode Menu[]

The Co-Op Mode Menu lists currently online players and allows searching by UID. The list displays the player's avatar, name, Adventure Rank, profile signature, the number of people in their world, and their status.

Players can set their World Permissions to Reject Join Requests, Allow Direct Join, and Join After Approval.

The Co-Op Mode Menu can be accessed from the Icon Co-Op Mode icon, the Paimon Menu, or the Shortcut Wheel.

Rules and Restrictions[]

Restrictions for starting Co-Op Mode
  • Players can only join worlds of players whose World Level and Adventure Rank ("AR") range is lower than or equal to their own.
    • In the case of the Serenitea Pot, players can join their Friends' Serenitea Pot regardless of either one's World Level or AR.
  • Certain Archon Quests, Story Quests, World Quests, and Event Quests may manipulate the world and hence disable access to Co-Op Mode, even if the quest is not the active quest. This will also disable the player's access to their own Serenitea Pot. Some quests may temporarily re-enable Co-Op Mode between steps.
    • If a quest is currently manipulating a host and the host has just completed the activity, it will take some time before the host can be joined. The host can log out and back in to speed up the process.
    • While Co-Op Mode is disabled, any activity that requires entering the Co-Op screen — even if it can be played solo — cannot be started until Co-Op Mode is reactivated.
Rules during Co-Op Mode
  • If two players Co-Op together, each of them can choose two characters for the party and swap between them in combat like they can in solo. If three players Co-Op together, the host gets two characters while the others get one. With four players in Co-Op, each player gets one character to use in battle.
    • Players can change their fielded character(s) through the Party Setup menu while not in combat.
    • It is possible for players to have the same character when outside of Domains, but not in Domains.
  • Enemies and enemy variation types scale with the number of players currently in the world.

While not a game rule, it is generally considered impolite to take time-gated resources; such as certain ores, fishes, plants or other wildlife; without the host's permission. Some players refer to this as stealing.

Activities[]

Co-Op Activities[]

Activities that players can carry out in Co-Op
Activities that can only be carried out in Co-Op

Restricted Activities[]

Activities that players cannot carry out in Co-Op, except for the Host
Activities that players cannot carry out in Co-Op, not even as a Host
  • Talk to or interact with a majority of NPCs, including Katheryne and Shop owners, activating a new Statue of The Seven, and activating a Dendro Slime ambush.
  • Have the game paused while on the menu screen, even in a Co-Op room where you're the only player.
  • Certain events, such as Contending Tides, can only be completed in single-player mode.
  • Story Quests, which are temporarily paused. They can be continued once Travelers leave Co-Op Mode. If the Host is currently in a Story Quest, Co-Op Mode will be disabled until the quest is completed or cancelled.
  • Gain the other player party character's passive abilities (for example, Razor's sprint stamina passive, Ningguang's mining outcrop spotting passive, and Tartaglia's Master of Weaponry will not apply for the other player).

Co-Op Scaling[]

Players Enemy Base HP Enemy Base ATK
1 100% 100%
2 150% 110%
3 200% 125%
4 250% 140%
  • This table displays how enemy health and damage dealt to players scale up in Co-Op Mode.[1]
  • Overworld stats will scale based on the number of players in the session, even if some are in a Domain.
  • Domain stats on the other hand will scale based on the number of players in the Domain only.
  • Damage from Ley Line Disorders and Auras does not scale up with players.
  • Companionship EXP rewards are doubled in Co-Op Mode with two or more players.

Achievements[]

There are 41 Achievements obtainable from Co-Op Mode:

Achievement Category Description Requirements Primogem
Unswerving Wonders of the World Wonders of the World Open the chest in the middle of the heart-shaped rock formation. Requires two players (Co-Op) to stand in the heart for the chest to spawn. 5
Temari for Life Wonders of the World Wonders of the World Have another player join a game of Temari that you are hosting. 5
"Call Me Ishmael." Teyvat Fishing Guide: Series I Teyvat Fishing Guide: Series I Catch one fish in another player's world. 5
A Very Long Engagement Wonders of the World Wonders of the World Though destinies may be sundered, the pact lives on in slumber... Sit on each of the three chairs in The Orchard of Pairidaeza at the same time with 2 teammates in Co-Op Mode. 5
You Came, You Saw, We Co-Oped Meetings in Outrealm: Series I Meetings in Outrealm: Series I Complete Domains together with other players 5 times. 5
You Came, You Saw, We Co-Oped Meetings in Outrealm: Series I Meetings in Outrealm: Series I Complete Domains together with other players 20 times. 10
You Came, You Saw, We Co-Oped Meetings in Outrealm: Series I Meetings in Outrealm: Series I Complete Domains together with other players 100 times. 20
I Came, I Saw, I Conquered Meetings in Outrealm: Series I Meetings in Outrealm: Series I Collect 5 regional specialties in another player's world. 5
I Came, I Saw, I Conquered Meetings in Outrealm: Series I Meetings in Outrealm: Series I Collect 20 regional specialties in another player's world. 10
I Came, I Saw, I Conquered Meetings in Outrealm: Series I Meetings in Outrealm: Series I Collect 50 regional specialties in another player's world. 20
That's One Big Crystalfly Meetings in Outrealm: Series I Meetings in Outrealm: Series I Defeat an Anemo Hypostasis in Co-Op Mode. 10
...And Still Smiling! Meetings in Outrealm: Series I Meetings in Outrealm: Series I Defeat an Electro Hypostasis in Co-Op Mode. 10
You Have to Hit the Pillars Meetings in Outrealm: Series I Meetings in Outrealm: Series I Defeat a Geo Hypostasis in Co-Op Mode. 10
Just Me and You, the Sky So Blue, and Almost Getting Killed by a Cryo Regisvine Meetings in Outrealm: Series I Meetings in Outrealm: Series I Defeat a Cryo Regisvine in Co-Op Mode. 10
This Is Fine Meetings in Outrealm: Series I Meetings in Outrealm: Series I Defeat a Pyro Regisvine in Co-Op Mode. 10
A Fish Called Rhodeia Meetings in Outrealm: Series I Meetings in Outrealm: Series I Defeat an Oceanid in Co-Op Mode. 10
Wolf Pact Meetings in Outrealm: Series I Meetings in Outrealm: Series I Defeat the king of Wolvendom in Co-Op Mode. 10
A Delusion's Abilities Don't Decide a Battle's Outcome Meetings in Outrealm: Series II Meetings in Outrealm: Series II Defeat Childe in Co-Op Mode. 10
Moving Mountains Meetings in Outrealm: Series II Meetings in Outrealm: Series II Defeat a Primo Geovishap in Co-Op Mode. 10
Blast from the Past Meetings in Outrealm: Series II Meetings in Outrealm: Series II Defeat Azhdaha in Co-Op Mode. 10
Put on Ice Meetings in Outrealm: Series II Meetings in Outrealm: Series II Defeat a Cryo Hypostasis in Co-Op Mode. 10
No Strings Attached, Anymore Meetings in Outrealm: Series II Meetings in Outrealm: Series II Defeat a Maguu Kenki in Co-Op Mode. 10
Operation Bonfire Meetings in Outrealm: Series II Meetings in Outrealm: Series II Defeat a Pyro Hypostasis in Co-Op Mode. 10
The Not-So-Perpetual Mechanical Array Meetings in Outrealm: Series II Meetings in Outrealm: Series II Defeat a Perpetual Mechanical Array in Co-Op Mode. 10
Our Hearts as One Meetings in Outrealm: Series III Meetings in Outrealm: Series III Defeat a Thunder Manifestation in Co-Op Mode. 10
Water, Basically Meetings in Outrealm: Series III Meetings in Outrealm: Series III Defeat a Hydro Hypostasis in Co-Op Mode. 10
Dashing Through the Snow... and the Flames Meetings in Outrealm: Series III Meetings in Outrealm: Series III Defeat Signora in Co-Op Mode. 10
The Whisperer in Darkness Meetings in Outrealm: Series III Meetings in Outrealm: Series III Defeat the Golden Wolflord in Co-Op Mode. 10
Brave the Lightning's Glow... Meetings in Outrealm: Series III Meetings in Outrealm: Series III Defeat the Raiden Shogun in Co-Op Mode. 10
Surpassing the Ancients' Wisdom Meetings in Outrealm: Series III Meetings in Outrealm: Series III Defeat the Ruin Serpent in Co-Op Mode. 10
I'm a Flexitarian Meetings in Outrealm: Series III Meetings in Outrealm: Series III Defeat a Jadeplume Terrorshroom in Co-Op Mode. 10
Electric Shock Hazard Meetings in Outrealm: Series III Meetings in Outrealm: Series III Defeat an Electro Regisvine in Co-Op Mode. 10
End of the Eternal Return Meetings in Outrealm: Series IV Meetings in Outrealm: Series IV Defeat the Aeonblight Drake in Co-Op Mode. 10
Ever So Slightly Inferior Meetings in Outrealm: Series IV Meetings in Outrealm: Series IV Defeat the Algorithm of Semi-Intransient Matrix of Overseer Network in Co-Op Mode. 10
The Greenery Out of Space Meetings in Outrealm: Series IV Meetings in Outrealm: Series IV Defeat a Dendro Hypostasis in Co-Op Mode. 10
Dance Like You Want to Win! Meetings in Outrealm: Series IV Meetings in Outrealm: Series IV Defeat Shouki no Kami, the Prodigal in Co-Op Mode. 10
Desert-Dwellers' Rite of Passage Meetings in Outrealm: Series IV Meetings in Outrealm: Series IV Defeat the Setekh Wenut in Co-Op Mode. 10
Presumption of Guilt Meetings in Outrealm: Series IV Meetings in Outrealm: Series IV Defeat the Iniquitous Baptist in Co-Op Mode. 10
Proof of the Reed Sea Conqueror Meetings in Outrealm: Series IV Meetings in Outrealm: Series IV Defeat the Guardian of Apep's Oasis in Co-Op Mode. 10
The Power of Science is Staggering! Meetings in Outrealm: Series IV Meetings in Outrealm: Series IV Complete one form of the "Icewind Suite" challenge in Co-Op Mode. 10
A Successful Hunt Meetings in Outrealm: Series IV Meetings in Outrealm: Series IV Defeat the Emperor of Fire and Iron in Co-Op Mode. 10

Change History[]

Version 2.7
  • Optimizes the presentation of dialogue window in Co-Op Mode: Party Chat is set by default after entering Co-Op Mode and opening the chat list.

Version 2.4

  • Updated the Co-Op Menu icon with blue (1P) and green (2P, 3P, 4P) player number icons.

Version 2.3

  • When a player leaves the party, their vacancy will now be filled by a corresponding character from the host's original party composition before they entered Co-Op Mode.
  • Fixed an issue in Co-Op Mode whereby the unlocked Teleport Waypoints in Tsurumi Island would disappear on the map after exiting Co-Op Mode.
  • Fixed an issue in Co-Op Mode whereby when multiple Barbaras use their Elemental Burst at the same time, healing may only take effect once.

Version 1.6

  • Added status markers when teammates are switching characters in the Party Preparation screen.
  • Added markers for teammates outside the range of currently displayed map area which can be clicked to quickly locate that teammate.
  • Optimized text displayed when players are leaving or removed from Co-Op Mode.
  • Players can now craft and forge items in Co-Op Mode.
  • When fallen in Co-Op Mode within a Domain, one can rotate the camera view in spectator mode.

Version 1.5


Version 1.4

  • Idle animations of teammates' characters can now be seen.

Version 1.0

  • Co-Op Mode was released.

References[]

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