- What Xbox, Steam and the official site list
- Why the single player label isn't an offline switch
- Playing on Xbox and the online multiplayer requirement
- Remote Play on a phone or tablet
- When your internet is patchy at home
- Offline adventures for when you're away from the router
- My take on Sea of Thieves without the internet
- Frequently asked questions
No, not according to its store pages. The Xbox and Steam listings for Sea of Thieves: 2026 Edition describe online co-op and online multiplayer, the Xbox page says the console version needs Xbox's online multiplayer service, and none of the pages mention an offline mode.
Sea of Thieves looks like the perfect game to lose yourself in on a long trip: a ship, a horizon and nobody telling you where to go. The catch is that it's built as a shared pirate world, and every store page that sells it describes it as an online game.
I read the Xbox Store listing, the Steam store page and the official Sea of Thieves site. Here's what each one says, what the single player label on the Xbox page does and doesn't mean, and what to do if your connection is shaky.
What Xbox, Steam and the official site list
| Source | What it lists |
|---|---|
| Xbox Store | Online co-op (2-4), Online multiplayer (2-4), Xbox cross-platform multiplayer, Single player, Xbox cross-platform co-op |
| Xbox Store | The console version needs Xbox's online multiplayer service to play |
| Steam store | Multi-player, PvP, Online PvP, Co-op, Online Co-op, Cross-Platform Multiplayer, Remote Play on Phone and Tablet |
| Official site | A pirate adventure on Xbox, Windows, PlayStation 5 and Steam; no offline mode mentioned |
Put those together and the picture's clear. Every capability listed is about playing with or against other people over the internet, and no page I read offers an offline option.
Why the single player label isn't an offline switch
The Xbox listing does include Single player, and that's where a lot of the confusion comes from. It's easy to read it as "you can play on your own without the internet", but the listing doesn't say that. Single player tells you that you can sail a ship by yourself. It says nothing about whether you can do it without a connection.
The Steam page doesn't use a single player category at all. Its list is entirely multiplayer, PvP and co-op, which fits a game where other crews can appear on the horizon at any moment. That's the heart of Sea of Thieves: the other ships are real people, and that's what makes a quiet treasure run suddenly exciting.
So if you're hoping to play alone on a plane, a solo voyage still looks like an online voyage. You're on your own ship, but you're not on your own sea.
Playing on Xbox and the online multiplayer requirement
Console players have one extra thing to know. The Xbox Store listing says the game requires Xbox's online multiplayer service to play on console. That's a line on the store page itself, not a guess, and it's a strong sign there's no offline route on Xbox.
On Windows and Steam the listings don't carry that same line, but they don't list an offline mode either. Whichever platform you're on, assume you'll need a working connection each time you set sail.
Remote Play on a phone or tablet
The Steam page lists Remote Play on Phone and Remote Play on Tablet. That can sound like a mobile version you could take anywhere, but Remote Play streams a game from your own computer to another screen. Your computer is still running Sea of Thieves, still online, and your phone or tablet needs a good connection to it.
It's handy for playing from the sofa or another room, but it won't help on a train or in a tent. Think of it as a longer cable, not a travel mode.
When your internet is patchy at home
- Use a cable: plug your console or PC into the router if you can. It's steadier than Wi-Fi.
- Clear the line: pause big downloads and streaming on other devices while you play.
- Update early: install updates on good Wi-Fi so you're not stuck waiting when friends are ready.
- Check the servers: if everyone's struggling at once, the problem may not be at your end.
- Keep sessions shorter: on a weak connection, a quick voyage is less painful to lose than a long one.
Offline adventures for when you're away from the router
If you want to keep playing with someone in the same room, there are good couch games that don't rely on a shared online world, and my list of Xbox offline co-op games for couch play is a good place to look.
Want AI doing the heavy lifting in your marketing?
I build the systems that handle the boring 80 percent, so you get your week back. Done properly, with the human kept in.
Travelling with children? These offline games for kids on a road trip will keep a car full of young pirates busy without any signal at all.
And for a laptop on holiday, this list of freeware offline games for Windows PCs has plenty that will happily run with no connection.
My take on Sea of Thieves without the internet
Treat Sea of Thieves as an online game, full stop. Its store pages are all about crews, co-op and other players, and none of them offer a way to play offline. That's not a flaw so much as the whole point: the stories people tell about this game almost always start with another ship appearing out of the fog.
Save it for evenings at home on a steady connection, ideally with a friend or two on board, and pack something built for offline play when you're travelling. You'll enjoy both far more that way.
Frequently asked questions
Can you play Sea of Thieves offline?
No offline mode appears on its Xbox or Steam store pages or its official site. The listings describe online co-op and online multiplayer.
Can I play Sea of Thieves on my own?
The Xbox listing includes Single player, so you can sail alone, but nothing on the listings says you can do that without a connection.
Do I need Xbox's online multiplayer service to play on console?
Yes. The Xbox Store listing says the game requires an online multiplayer service to play on console.
Can I play Sea of Thieves on a phone?
The Steam page lists Remote Play on Phone and Tablet, which streams the game from your own computer. It still needs a connection.
How many players can be in a crew?
The Xbox listing shows online co-op and online multiplayer for 2-4 players.
What platforms is Sea of Thieves on?
The official site lists Xbox, Windows, PlayStation 5 and Steam.
