You added your friend, you can see their name, and you still spawn into an empty world. If that's happening to you in Once Human on PS5, Xbox or PC, you are not doing anything wrong. The game has one rule that no menu spells out: being friends is not enough. You need the same Region, the same Server and the same World before you can team up. And since Isles of Abyss launched on October 21, 2026 (PT), the new ocean scenario adds its own rules on top: a squad sign-up that guarantees you land together, a Team unlock at Tech Level 1, and an Xbox-only friend-list invite.
Updated October 25, 2026. Current as of version 3.1.1 (the October 21 PT Isles of Abyss update) and the October 23 bug-fix patch, checked against the official `oncehuman.game` server-schedule post, the 3.1.1 patch notes and the Console Launch FAQ.
Quick answer: how do you play with friends in Once Human?
To play Once Human with friends, everyone must be on the same Region, the same Server and the same World. Then add each other under Social and Invite to Team (4 players total, including you). Crossplay is on: PS5 and Xbox can play together on any server, and groups that include PC or mobile need an untagged cross-platform server. For Isles of Abyss, the easiest route is the scenario squad: form a squad, the leader signs up, and every member is guaranteed the same server.
- Agree on one Region and one Server before anyone makes a character. That's the cheapest fix. An existing character can still move to a friend's server, but only through Scenario Exit and sign-up, which settles its current scenario.
- Mixed PC/mobile and console group? Pick an untagged server. Servers tagged 【Console】 only accept console players, so they work for a PS5 + Xbox group but not for a PC friend.
- Same server but can't see each other? You're in different Worlds. Isles of Abyss runs 12 Worlds per server, so this happens a lot. Swap at a World Stone.
- Isles of Abyss: use Menu → Scenario → Sign Up Interface → Team-Up Platform to form a squad before signing up. Your Team only unlocks at Tech Level 1 in that scenario.
- Xbox players can invite friends to their Isles server from the console friend list. On PS5 that feature is still in development.
Is Once Human multiplayer and crossplay? Can PS5 play with Xbox and PC?
Yes, on both counts. Once Human is an online survival game where every server holds thousands of players. It has full crossplay across PS5, PS5 Pro, Xbox Series X/S, PC and iOS/Android, which Starry Studio confirmed in its official Console Launch FAQ:
"PlayStation 5, PlayStation 5 Pro, and Xbox Series X/S are supported. After the console version launches, full cross-platform play will be supported with the already-released PC/mobile versions. Players can add each other as friends, team up, and play together across platforms."
— Once Human Console Launch FAQ, oncehuman.game
Three caveats before you plan a session:
- No PS Plus or Game Pass needed. The same FAQ says the game is free and doesn't require a subscription. A PS Plus or Xbox Game Pass membership only adds bonus platform cosmetics.
- Server type decides who can join. Untagged servers are cross-platform. Servers whose names start with 【Console】 are console-exclusive: per the FAQ, "Only console devices can enter and play on console-exclusive servers." A PS5 + Xbox group can use either kind. If a PC or mobile friend is in your group, everyone has to pick an untagged server. (Isles of Abyss: RaidZone also has a 【Console】 server in North America and Europe only.)
- Region still splits you. Crossplay works inside a region. An NA server and an EU server are separate, even though both are cross-platform.
Full platform breakdown, including the account-linking trap that can cost you a character: Once Human crossplay and cross-progression explained.
How do you add friends in Once Human on PS5, Xbox and PC?
You add friends in-game with their Once Human ID, not through your PlayStation or Xbox friends list. The steps are the same on every platform:
- Open the menu (Options/Menu on a controller, Esc on PC).
- Go to the Social tab.
- Type your friend's in-game ID or numeric player ID into the search bar.
- Open their profile and select Add Friend. They accept from their own Social menu.
Once you're standing near each other in the world, you can open their character and send a friend request or Team invite from there. Menu labels can differ slightly between PC, console and mobile, but the Social → Add Friend → Invite to Team flow is the same.
One thing trips up console players: PlayStation and Xbox party or lobby codes are not Once Human server IDs. Ignore the console party system for this. Your friend can see their server name in their character's sign-in information, and your region is shown in the upper-right corner of the sign-in screen. What matters is the Region, Server and World you each picked inside Once Human.
Why can't I see my friend? Same Region, same Server, same World
This is the rule behind most "we're friends but I'm alone" posts. Once Human is split into Region → Server → World, and you have to match all three.
| Layer | What it is | Can you change it? |
|---|---|---|
| Region | NA, EU, SA, SEA, Japan/Korea, HK/MO/TW | Chosen at character creation. Different region = different character |
| Server | A scenario instance (Manibus, The Way of Winter, Isles of Abyss…), historically stated by the studio as 6,000–8,000 players | Make a new character there, or use Scenario Exit and then sign up (this settles your current scenario) |
| World | A parallel copy of the map inside one server. Shown top-right, e.g. "NormalWorld 1". 12 per server in Isles of Abyss | Free, any time, at a World Stone |
Before anyone commits to a character:
- Your friend checks their Region, Server name and World (top-right corner in-game).
- On a fresh character, clear the beginner stages, then at scenario selection choose More Servers and pick the same Region and Server.
- If that server shows full, ask your friend for a Special Invitation Code (their in-game profile → View Special Invitation Code). You can only get onto a full server with a code, and the code only works for that server and region. Details: Once Human "Server Is Full" fix.
Already on different servers? Use Scenario Exit
You don't have to start over. The Console Launch FAQ (Q21) gives the official route: "If your Scenario has not yet reached the rest period, you can exit your current server for free the first time via Scenario - Scenario Description - Scenario Exit, then sign up to go to your close friend's server and play. If your Scenario has already reached the Rest period, simply sign up and go to your close friend's server to play."
The catch: leaving settles that character's scenario. Level and scenario supplies reset in the new server, while account-wide progress (cosmetics, Blueprint Level, Mod Level) stays. Early exits after the first are capped and cost a Scenario Exit Card or Mitsuko's Marks, and permanent servers don't offer them. Full rules: how to change and switch servers in Once Human.
The World Stone fix
If you're on the same server and still can't find each other, you're in different Worlds:
- Ask your friend which World they're in (top-right label).
- Go to a World Stone (Teleportation Tower).
- Interact with it and choose change World.
- Pick your friend's World.
This doesn't change your server and doesn't move your base. You're only switching which parallel copy of the map you're loaded into.
How do you play Isles of Abyss with friends?
Isles of Abyss is a PvE ocean scenario that went live after maintenance on October 21, 2026 (PT) (October 22 in EU and Asia). The first batch was 4 servers in North America and Europe (`Isles_Abyss-X0001` to `X0004`) and 2 in each other region, with more opened based on demand (official server schedule). With that few servers and 12 Worlds on each one, splitting up by accident is easy. There are three ways to get in together.
Option 1: the Scenario Squad (the officially guaranteed method)
Starry Studio's own instruction: "Team up in advance and sign up as soon as the servers open—your squad is guaranteed to enter the same server."
- Open Menu → Scenario → Sign Up Interface and select Team Up (the Team-Up Platform).
- Create or join a squad with your friends.
- The squad leader signs up for an Isles of Abyss server. Every member then goes to that same server.
The official rules include a few gotchas:
- Sign-up only opens in the final phase of your current scenario. A character still mid-scenario can't join a Scenario Squad.
- A character that has reserved a permanent-server merge can't join a squad. Cancel the merge reservation first.
- Characters on a permanent server sometimes can't join a squad. The studio's workaround is to leave your Hive and then join again. It lists this as a known issue that is being fixed.
- Each character can only be in one Scenario Squad.
Joining Isles with an existing character this way settles that character's current scenario. Level and supplies restart in the new scenario, while account-wide data like cosmetics, Blueprint Level and Mod Level stays. If you don't want to end your current run, use Option 2.
Option 2: a new character on the same server
Create a new character, skip the New Player Experience, go to Scenario Selection, and choose the Isles of Abyss server your friends agreed on. Your other characters keep their current scenarios. For the full walkthrough, see how to join Isles of Abyss on PS5 and Xbox.
Option 3: invitation code or Xbox friend-list invite
If your friend's Isles server is full, they can share their invitation code (their profile → invitation code) so you can still get in. Xbox players have a shortcut: you can invite friends to your Isles server straight from the Xbox friend list. The official post says the PS5 version of that feature is "currently in development" and will release "as soon as possible." As of October 25 it hasn't been announced as live, so PS5 players should use the squad or the code for now.
Why you can't make a Team on a fresh Isles character (Tech Level 1)
Plenty of players reached Isles of Abyss and found the Team option greyed out. That was intentional, but the studio lowered the bar two days after launch. The October 23 bug-fix notes say: "Adjusted the Team system unlock requirement in the Isles of Abyss scenario from Tech Level 2 down to Tech Level 1."
So on a new Isles character, progress to Tech Level 1 before you try to invite anyone. Until then you can share a server and World and play next to each other, but you can't form a Team.
Can you play Isles of Abyss fully in co-op?
Mostly yes, with one solo stretch. The official 3.1.1 notes describe the Calamity Tower ladder as going "from solo challenges that progress with the main story, to team battles, and then to the abyss challenge in Phase II." So the main-story tower fights are solo, and the team battles and Calamity Tower: Abyss are made for groups. The official patch notes say they test "ship cannon handling, ship maneuvering, and cooperate skills". Our Calamity Tower guide covers the fight.
What your group can do together in Isles of Abyss:
- Share one ship design. Once someone builds a ship the group likes, save it as a Design Layout. The studio says you can "share your masterpiece with friends, letting squad members easily have the same warship."
- Crew a ship together. Players can walk around on a ship while it sails. The October 22–23 fixes dealt with "characters moving on a ship" lagging or rolling back while it was in motion.
- Take on the endgame boss. The launch press release calls the Sunken Lord a "four-player co-op raid", which matches a full Team.
- Clear the Phase II Sea Calamity Zones. These are built around ship configuration and naval combat, and they're much easier with more than one gunner.
How do you invite friends to a Team, and what's a Hive?
Once you share a Region, Server and World:
- Open Menu → Social/Team.
- Find your friend (add them first if needed).
- Choose Invite to Team, or they send Request to Join from your profile.
- Accept, and you're grouped.
A Team holds 4 players total, including you. That's your combat party for group content, revives and boss fights. For a bigger group, everyone joins the same Hive, the larger persistent group. Many communities run one Hive with several 4-player Teams inside it. Hives matter in Isles of Abyss too: some Halloween event features work in "your own or your Hive squad member's territory", per the 3.1.1 notes.
For voice, crossplay groups mostly use Discord, because PlayStation and Xbox party chat don't connect to each other or to PC.
What can and can't you do together in Once Human co-op?
- Explore, fight bosses and run dungeons together once you share a World and a Team.
- Bases are personal territory. You can visit and help at a friend's base, but each player owns their own territory, so most groups build next to each other. In Isles of Abyss, your ship is also a movable territory.
- Trade with friends by standing next to each other. Friend trades are limited to Tools, Consumables, Materials and Special items. Weapons and armor aren't on that list.
- No split-screen or couch co-op. Every player needs their own console, PC or phone.
- PvP scenarios (Evolution's Call, Prismverse's Clash, RaidZone) put groups against each other. Join the same faction or side where the scenario asks you to.
FAQ
Can PS5 and Xbox players play Once Human together? Yes. Crossplay is officially confirmed across PS5, PS5 Pro, Xbox Series X/S, PC and mobile, within the same region. A PS5 + Xbox group can use either a 【Console】 server or an untagged one. Add a PC or mobile friend and everyone needs the same untagged server.
Is Once Human multiplayer? Yes. The official FAQ calls it "a multiplayer open-world survival game." You can form a Team of 4 players, join larger Hives, and play PvE scenarios like Isles of Abyss or PvP modes like RaidZone together.
How do I make sure my friends and I get the same Isles of Abyss server? Use a Scenario Squad: Menu → Scenario → Sign Up Interface → Team Up. Form a squad, and the squad leader signs up. The studio guarantees every squad member enters the same server.
Why can't I invite my friend to a Team in Isles of Abyss? On a new Isles character, the Team system unlocks at Tech Level 1. It was lowered from Tech Level 2 in the October 23, 2026 patch. Reach Tech Level 1, make sure you're both in the same World, then invite.
Can I invite friends from my PS5 friends list? Not yet. The Isles of Abyss friend-list invite is live on Xbox, and the studio says the PS5 version is still in development. PS5 players should use a Scenario Squad or a server invitation code for now.
I added my friend but we can't see each other. Why? You're almost certainly in different Worlds on the same server. Check their World label (top-right), go to a World Stone, and switch to the same one. If you're on different servers altogether, one of you either makes a character on the other's server or uses Scenario Exit and signs up for it.
Do I need PS Plus or Game Pass to play Once Human with friends? No. The official Console Launch FAQ says the game is free and doesn't need a subscription. A membership only adds bonus cosmetics.
More Once Human co-op and console guides. Keep your group on the same page with these:
