Game servers

A game server runs Minecraft, Terraria or Valheim for your players, on your workspace's private network with a public address to share. Game servers are in the dashboard under Game servers.

Games

Sizes

A game server takes its size from your account's quota, like any instance; the create form shows what it would use under Quota usage. The Free plan's quota, 2 vCPU and 2 GB of memory, fits a Terraria server on Small, but not the larger sizes.

Create a game server

Choose Game servers → New game server and pick a game:

• Server name, or World name for Terraria: 3 to 31 lowercase letters, digits and underscores, starting with a letter. It names the server in the console and its hostname.
• Password, under Configure credentials, for Minecraft and Valheim: 12 to 128 characters without spaces or quotation marks; leave it blank to have a strong one generated. For Valheim it is the password players type to join. For Minecraft it guards the server's remote console, and players never need it.
• Network access: Public, the default, so players can reach it, or Private.
• Plan: the size.
• For Minecraft, tick I accept the Minecraft EULA.

Choose Create instance. The Provisioning tab follows each step until the server is Ready. A new Valheim server generates its world on its first start, which can take several minutes.

Invite players

Give players the Public address from the Connection card on the server's Overview: its hostname and port, such as survival-7a1b.play.sahabti.app:40021. The port is the server's own public port on your workspace's shared IP, from 40000–49999, not the game's usual port, so players must include it:

• Minecraft: Multiplayer → Add Server, and enter the address with its port.
• Terraria: Multiplayer → Join via IP, then the hostname and the port.
• Valheim: Join Game → Add server, the address with its port, then the password.

To decide who may connect, edit the allowed sources of the game's built-in rule on the server's Network tab: see Instance network.

The game panel

The Game panel tab shows who is playing and gives you the server's console.

Players shows how many are online, checked every minute. A Minecraft server also lists their names; a Terraria server does not report players.

Server console sends a command to the running server and shows its reply. A command is up to 500 characters.

• Minecraft: the game's own server commands, such as say Restarting in five minutes, whitelist add <player> or op <player>.
• Terraria: the server's console commands.
• Valheim has no console of its own, so the panel offers these commands. Type help to list them:

Files

While the server is running, its Files tab browses the game's own folder: the Minecraft or Terraria server's folder, with its worlds and settings, or Valheim's world data.

• Open a folder to look inside it, and Download or Delete a file.
• Upload puts a file in the folder you are in, under its own name. A file of the same name is replaced only once the whole upload has arrived, so an upload that is cut off leaves the old file as it was.
• Empty files cannot be uploaded.

Updates

A Valheim server installs any game update every time it starts or restarts. Minecraft and Terraria servers keep the version they were created with.

Start, stop and resize

• Restart restarts the server cleanly. Stop switches it off at once, so save first: a world change since the last save can be lost. Minecraft saves with save-all, Terraria with save, and Valheim saves every ten minutes on its own.
• Resize plan, on the Settings tab, changes the vCPU and memory of a running server and grows its disk to the new size's. A Minecraft server's game uses the new memory from its next restart. The disk cannot shrink, so a size with a smaller disk can't be picked: a game server can only move to a larger size.
• Delete instance, under Danger zone on the Settings tab, destroys the server and its world; type confirm to confirm.

Not offered yet

• Minecraft Bedrock Edition players and remote console tools need ports that your workspace's shared IP does not forward. Players join by address, as above.
• Valheim's List in the server browser switch, in the Game panel, works only on a dedicated IP, which is not offered yet.
• A plugin and mod manager: the Plugins card says it is on its way.

Who can do what

From the API and MCP

Create a server with POST /v1/servers or the MCP tool create_instance, with minecraft, terraria or valheim as engine and a size such as game-4 as plan. The console is POST /v1/servers/{id}/console and the player count GET /v1/servers/{id}/gauges, both in the API only.