Genshin Co-op Guide: How to Unlock, What You Can Do & Tips
Genshin is a single-player RPG at heart, but co-op is the feature that turns an unbeatable weekly boss or an endless artifact grind into a party activity. New players often get stuck on "why can't I join my high-level friend" and "what am I even allowed to do here" — this guide covers the unlock, world level rules, boundaries and etiquette in one read.
Quick Answers
- Unlock: Multiplayer opens at Adventure Rank 16.
- Joining rule: a visitor's World Level must be ≥ the host's; higher-level players can visit lower worlds to help.
- Visitor limits: no chests, no Oculi, no quest progress — but drops and Resin are your own.
How to Unlock Co-op
- Reach Adventure Rank 16 and the Co-Op entry appears in your menu (direct hotkey on PC);
- While certain story/task quests are active, multiplayer is temporarily locked and restores when they finish;
- Add friends by UID (9 digits); PC / mobile / PlayStation players on the same server can play together cross-platform.
World Level & Joining Rules
Entry is governed by World Level with one simple rule: a visitor's World Level must be equal to or higher than the host's.
| Scenario | Can you join? | Notes |
|---|
| Visitor is higher | Yes | High-level players helping low-level hosts |
| Same World Level | Yes | The normal peer grouping |
| Visitor is lower | No | Lower levels cannot enter higher worlds |
| Host is World Level 9 | Same WL only | Special restriction added in 5.0 |
To get carried, have the veteran join your world — do not try to squeeze into theirs.
What You Can Do in Co-op
- Domains: artifact, talent, weapon-ascension and weekly-boss domains can all be matched or run with friends;
- World & weekly bosses: kill together; materials and weapon billets drop for each player, and after the fight everyone spends their own Resin and claim count for rewards;
- Ley Lines & gathering: farm Ley Line Outcrops as a team; monster drops and common ores/plants go to whoever earns them;
- Exploration: roam the overworld, fish, take photos, visit friends' Serenitea Pots, and some events support multiplayer.
Up to four players per world. The fewer the players, the more characters each controls (2 players = 2 characters each; 4 players = 1 each).
What You Cannot Do in Co-op
As a visitor:
- No opening chests or picking up Oculi — those belong to the host's world progress;
- No advancing the host's Archon/world/story quests, and most NPCs cannot be talked to;
- Most local specialties (ascension plants) cannot be collected;
- Some Statue of the Seven interactions and shop functions are restricted while guests are present.
As a host:
- Some of your own quests are blocked while guests are in your world;
- You can kick visitors anytime or set the world to "Join After Approval".
Tips & Co-op Etiquette
Tips:
- Stuck on a weekly boss? Match or invite a high-level friend; the host opens the domain and everyone gets materials;
- Set your world to "Join After Approval" to avoid random strangers;
- When you need help, message first and say exactly what you want to farm.
Etiquette (keep veterans willing to help):
- Greet the host when you enter and state your goal;
- Ask before harvesting anything; only gather after approval;
- Say thanks after domains; do not run around pulling enemies randomly;
- The host has the final say — if you get kicked, move on and find another world.
Related Guides
Summary
Co-op boils down to three rules: unlock at AR16; higher World Levels can visit lower ones but not the reverse; visitors keep their own drops and never touch the host's chests or specialties. Greet, ask, thank — and you will find plenty of friends willing to carry you.
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