How to Play PEAK With Friends: Invites, Room Codes and Crossplay

PEAK supports up to four players in one expedition: you plus three friends. There is no matchmaking, so every co-op run starts with an invite or a room code. Since October 22, 2026 the game is also on PlayStation 5, Xbox Series X|S and Nintendo Switch 2, and all four versions can play together.

Last checked: November 9, 2026.

PEAK multiplayer at a glance

How to invite friends on Steam

On PC, the classic way still works. Host a game, then invite friends through your Steam friends list. Since the Roots update in November 2025, a friend can accept an invite or join your game even if PEAK isn't running yet, as long as Steam is open.

Everyone gathers in the airport first. When the group is ready, you head to the island and the run starts on the Shore. Up to three friends can join you.

How to use room codes

Room codes were added in September 2026 to prepare for the console release, and they are the main way to join across platforms. They also work between two PC players.

1. The host starts a game and opens the pause menu. The room code is shown there and can be copied.
2. The host sends the code to friends through any chat app.
3. Each friend picks Join Game on the main menu and types in the code.

If you stream, there is a setting that hides the room code so viewers can't use it to get into your lobby. A hotfix on October 23, 2026 also fixed room codes failing when the host and the friend were in different regions, so update the game if a code from an overseas friend wouldn't work before.

Crossplay between PC and console

The console versions launched on October 22, 2026, and crossplay works between Steam, PS5, Xbox Series X|S and Switch 2. Use room codes to get mixed groups together, since a Steam invite can't reach a console player.

A few rules from Landfall's official FAQ are worth knowing before you plan a mixed session:

• Console players need an online subscription to play with others: PlayStation Plus, Xbox Game Pass or Nintendo Switch Online, as Landfall lists them. Solo offline play needs no subscription.
• Progress does not carry over. Badges and cosmetics earned on Steam stay on Steam. If you buy PEAK on a console, you start your badge collection again.
• Mods are not supported in crossplay. Client-side mods might work, but the developers don't guarantee it. If a mixed lobby keeps breaking, ask the PC players to remove their mods first.

Can more than 4 people play PEAK?

Not officially. The game is built for four scouts, and the official store page lists four as the limit. Larger lobbies only exist through unofficial PC mods. They aren't supported, and they won't work when console players are in the group.

Can you play PEAK solo?

Yes. PEAK has an offline single-player mode, and since July 2025 the game pauses when you open the menu in offline play. A few multiplayer-focused items, such as the Bugle of Friendship, don't spawn in solo runs. If you want company but have no group, the official advice is to look for other players on the PEAK Discord server, since the game has no random matchmaking.

Voice chat and lobby controls

PEAK uses proximity voice chat, so friends sound quieter the farther they are from you. A few settings help a group play smoothly:

• Push to talk and push to mute. Push to mute works the opposite way to push to talk, and a HUD icon shows when you are muted.
• Per-player volume. The pause menu has a volume slider for each player, so you can turn down one loud friend.
• Kicking players. The host sees a boot icon next to each player's slider in the pause menu. A kicked player can't rejoin that game. The ban list resets when you start a new game session from the main menu.
• Ending a run. In lobbies of three or more players, a majority pressing Next on the end screen is enough to continue.

How to stop strangers joining your lobby

Random players can sometimes join through Steam if your privacy settings allow it. Landfall recommends these steps:

1. Set Lobby Mode to Invite Only in the settings. Everyone in the group should do this, not only the host.
2. Set your Steam profile privacy to Private (or at least Friends Only), so people can't find your profile and join from it.
3. Re-host the lobby after changing these settings.
4. If you stream, use a Steam name you don't show on stream and hide the room code.

PEAK relays games through Photon servers, so other players shouldn't be able to see your IP address.

Joining mid-run and continuing later

Friends can join a run that has already started. If they would arrive as a ghost, the game checks whether your group has already used the revive statue at a campfire. If it has, the late player is revived too.

You also don't need to finish a run in one sitting. Since the Play It Your Way update in March 2026, the game autosaves at each campfire and you can continue the expedition later. The save stays until the run ends, either in a win or a loss, or until you start a new expedition. It's best if the original host hosts the continued run, because other players' saves don't hold the full world state. If a game update removes the map you were on, the save can be lost.

Fixes when you can't join a friend

These steps come from Landfall's troubleshooting FAQ:

• Make sure everyone is on the latest version. On PC, verify the game files in Steam if you see a version error.
• Let the player with the most stable connection be the host.
• On Steam, be friends with everyone in the lobby. Connection problems can happen when someone's profile is set to Friends Only and you aren't on each other's friends list.
• Remove mods from every PC in the group, especially when playing with console players.
• Restart the game, your router and your console or PC. Some players also fixed drops by turning off Multi-Link Operation (MLO) on their router.
• Remember that Steam has routine maintenance on Tuesdays, which can cause short outages.
• On console, check that your online subscription is active.

If none of this works, Landfall asks players to report the bug on the official Discord or the Steam forums, with a player log if possible.

Frequently asked questions

Is PEAK crossplay?

Yes. Since October 22, 2026, players on Steam, PS5, Xbox Series X|S and Nintendo Switch 2 can play together. Use the room code from the host's pause menu to join across platforms.

How many players can play PEAK?

Up to four players can climb together: the host and three friends. Bigger lobbies only exist through unofficial PC mods, which aren't supported and don't work with console players.

Does PEAK have matchmaking?

No. Multiplayer is friends-only, so you join through invites or room codes. If you have no group, you can play solo offline or find other players on the official PEAK Discord.

Do you need PlayStation Plus to play PEAK with friends?

Yes. Landfall's FAQ says an online subscription is needed on PlayStation, Xbox and Switch for online play. You can still play solo offline without one.

Can I transfer my PEAK progress from Steam to console?

No. There is no progress transfer between platforms, so badges and unlocks earned on Steam don't appear on PS5, Xbox or Switch 2.

Why can't I join my friend's PEAK game?

The most common causes are an outdated game version, mods on one of the PCs, or Steam privacy settings. Update the game, remove mods, make sure everyone is Steam friends with each other and let the player with the best connection host.

Can you play PEAK offline?

Yes, but only alone. PEAK has an offline single-player mode, and on consoles it doesn't need an online subscription. Playing with friends always goes online through invites or room codes.

PEAK is developed by Aggro Crab and Landfall. mgame.gg isn't affiliated with or endorsed by them.