Aniimo Co-op Guide: Parties, Servers and What Guests Keep

Aniimo has real online co-op — but it is not an MMO. Everything runs on invitations, hosted worlds, and one server rule that trips up every new group.

Unlocking co-op

Co-op unlocks after you defeat Alpha Turbo in the main story and pass the assessment that follows. Passing it promotes you to I Student, which opens Friends in the Function Menu. Fully playable solo; co-op is optional.

Setting up a party

• Open Friends from the Function Menu (or the Squad tab for a Party invite).
• Search by nickname or UID and send a friend request; in Astra or at an Outpost you can friend nearby players from their profile.
• Use Come to Me (the icon on the far right of a friend’s row) to pull them into your world.
• Parties cap at four players including the host.

Two modes matter: Companion Mode for open-world exploring, and Team Up for Sanctums and boss fights, where whoever starts it becomes Team Leader.

The server rule

Aniimo has three servers — Aniimo-America, Aniimo-Europe and Aniimo-Apac — and everyone in a party must be on the same one. Crossplay works across PC, PS5, Xbox and mobile, and cross-save runs through one Aniimo Pass account (same email, same server) — but progress never moves between servers. Agree on a server before anyone creates a character.

What guests keep — and what they do not

• The guest keeps catches and items. Anything you personally gain goes home with you.
• The host keeps the world. Quest progress, activated Blooms, exploration and teleport points save only in the host’s world — you will redo them in your own.
• Main story quests are single-player only — plan co-op around exploration, catches, Alphas and puzzles.

Why co-op is worth it

• Shared chests. When one player opens a chest, nearby party members who have not opened it yet get rewarded too, including Sanctum chests.
• Weather borrowing. Every world rolls its own weather. If a friend’s Beast Fang Ridge is in a thunderstorm, joining them is a free shot at Thunderstorm Form Scorchhowl. Mechanics in Weather and Phenomena.
• Combo Explosion. Parties of three or four get a high-damage combo against stunned enemies — a third player is a real damage upgrade over a duo.
• Homeland help. Till soil at a friend’s Homeland for a share of the harvest, or pet an egg in their Hatchinator to shave incubation time. Details in the Homeland guide.
• Holo-Battle Interlink. The weekly co-op boss mode unlocks at the Trailblazer I title and runs Thursday 04:00 to Monday 03:59 server time, with teams of four or AI fill-ins.

Social layer

Astra, Outposts, campfires and RV Parks are the public hubs where you see other players — duel, trade, chat and hatch eggs there, with automatic voice-to-text translation as of the 1.1 update. Trading requires Good Friend affinity, built through dailies, gifts and home visits across six levels.

For the game’s only PvP mode, see the Egg Heist guide; daily habits fit the Daily Routine.