Co-Op Mode is unlocked at Adventure Rank 16. In Co-Op Mode, a Party of up to four Travelers can adventure simultaneously and take on Domains and monsters, find treasure, and enjoy the 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).
The Co-Op Menu can be access at the icon in the user interface and the Paimon Menu.
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.
- If an Archon Quest or Story Quest, or any quest that manipulates the world, is currently in progress, the player cannot participate in Co-Op. (Certain quests may temporarily re-enable Co-Op Mode in between steps.)
- If a quest is currently manipulating a host, and the host just finished, it will take a bit of time before they can be joined. The host can log out and back in to speed up the process.
- While Co-Op Mode is deactivated, 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. (For example, the Fading Star challenge during Unreconciled Stars and Frostborn Miracle during The Chalk Prince and the Dragon.)
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 that players can carry out in Co-Op:
- Domains and Ley Line Outcrops (although they must be initiated by the host).
- A player can only receive rewards for up to 4 commissions, regardless of whether the commissions were completed solo in their own world or in Co-Op with other players.
- Certain commissions cannot be progressed while in Co-Op Mode. See page for more information.
- World Quests, excluding Adventure Rank Ascension quests.
- Hunting and defeating monsters and bosses in the open world. (Note some boss fights can only be initiated by the host.)
- Collecting Resources.
- Some resources can be collected by all players in a Co-Op session, such as ore (excluding Cor Lapis) and dropped loot from Common Enemies and Elite Enemies.
- Plants found in the open world cannot be collected by multiple players in the same session i.e. can only be collected once and by one person.
- Wood can be gathered from the same trees, although wood only drops for whoever hits the tree.
- Weekly Bounties, but only the host can access and gain Reputation.
- Switching characters.
- Healing at the Statue of The Seven.
- Resonating with the Statue of The Seven for the Traveler to change element.
- Earning Achievements.
- Viewing your individual map pins.
- Completing Open World mechanism-activated Time Trial Challenges, which must be started by the host.
- Making use of Elemental Resonance even with characters from another party (e.g. if Player 1 has a Pyro character in their party and Player 2 has a Pyro character in their party, both players will have the Fervent Flame attack buff active).
- Some Character Talents will affect Co-Op partners' characters. These include:
- The Healing abilities of characters, including but not limited to Barbara, Bennett, Diona and Jean.
- The Co-Op shields generated by Diona's Shaken, Not Purred (C2) and Zhongli's Stone, the Cradle of Jade (C2).
Activities that players must carry out in Co-Op:
- All achievements in the categories Meetings in Outrealm: Series I and Meetings in Outrealm: Series II."
- The "Unswerving" achievement and a Luxurious Chest at the Heart Island east of Yaoguang Shoal (north of Guyun Stone Forest) can only be obtained with Co-Op Mode. To reach this island, go north from the Geo Hypostasis and activate the clover pinwheel in order to glide to this island.
- The achievement "Temari for Life", which requires hosting a game of Temari.
- The achievement "Call Me Ishmael.", which requires catching a fish in another player's world.
- Certain events, like Rhodeia's Rage and The Chalk Prince and the Dragon's Resurgent Cryo Regisvine, require entering "Special Event Mode", which automatically switches the world to Co-Op. This will not match you with other players, but by having "Allow Direct Join" enabled, some players will be able to join and play along with you.
Activities that players cannot carry out in Co-Op, except for the Host:
- Activate elemental monuments.
- Open Chests or pick up Sigils.
- Interact with Investigation points.
- Pick up Oculi.
- Use a Treasure Compass.
- Initiate events, such as encountering a Seelie, spawning Oceanid, or unlocking domain doors.
- Spiral Abyss.
- Adjust the time of day.
- Make offerings to the Statue of The Seven or set the amount to be healed, however you can be healed or change your Traveler's element.
- Enter the Host's Serenitea Pot (must be a friend to do so).
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. (these quests 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).
|Players||Enemy Base HP||Enemy Base ATK|
- This table displays how enemy health and damage dealt to players scale up in Co-Op Mode.
- 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 at least two or more players.