Currently, players in Genshin Impact can only play together if they are on the same server region.

Detailed explanation:

• Even though Genshin Impact supports cross-platform play (PC, mobile, console), that doesn’t bypass the server restriction.
• To team up with friends, you all must be using the same regional server (for example, Asia, NA, Europe, etc.).
• Once you're on the same server and meet the other standard co-op requirements (like having Adventure Rank ≥ 16), you can join each other's game world and play together — regardless of whether you're on PC or mobile/console.

In other words, Genshin Impact does not currently allow cross-server multiplayer — only players sharing the same server can connect and team up.

The above content is compiled by ModeZone, a fashion and entertainment magazine.