# Schedule 1 Dedicated Server Setup (/docs/schedule-1/dedicated-server-setup)
import { Callout } from 'fumadocs-ui/components/callout';
import { Step, Steps } from 'fumadocs-ui/components/steps';
**TL;DR:** Schedule I has no official dedicated server. The community **S1 DedicatedServerMod** (`ifBars/S1DedicatedServers`, GPL-3.0) provides headless authoritative hosting via MelonLoader. XGamingServer pre-installs the whole stack — you just configure operators in `permissions.toml` and go.
What is the S1 DedicatedServerMod? [#what-is-the-s1-dedicatedservermod]
The base Schedule I multiplayer is **Steam P2P**: one player's session is the authoritative world, friends join via the Steam Friends list, and if the host logs off the world is gone.
The community **S1 DedicatedServerMod** (open-source, GPL-3.0, by ifBars — repo: [`ifBars/S1DedicatedServers`](https://github.com/ifBars/S1DedicatedServers)) replaces that with a true headless authoritative server.
What it provides:
* **Headless operation** — no display required
* **Save / load / time / sleep / multiplayer flow** all preserved server-side
* **Steam-based authentication** (`SteamGameServer` provider)
* **Permissions system** with 5 built-in groups and dotted permission nodes
* **TCP console** (RCON-style remote admin, default port 4050)
* **Optional localhost web panel** (default port 4051) for browser-based admin
* **Configurable messaging backend** (FishNet RPC or Steam Networking Sockets)
* **TOML-based configuration** across three files: `server_config.toml`, `permissions.toml`, `client_mod_policy.toml`
The DedicatedServerMod is **not officially affiliated with or endorsed by TVGS** — it's a community project. When Schedule I patches, the mod may need an update before it works again. XGamingServer keeps the preinstalled version aligned with the latest stable release.
What's pre-installed on your XGamingServer plan [#whats-pre-installed-on-your-xgamingserver-plan]
Every Schedule 1 plan ships with the full stack ready to go:
| Component | Purpose |
| ----------------------------------- | ------------------------------------------------------------------------------------------------- |
| **Schedule I (Steam, App 3164500)** | Base game install |
| **MelonLoader** | Universal Unity mod loader (the entry point for Schedule I mods) |
| **S1API** | Standardized modding API |
| **S1 DedicatedServerMod** | Headless authoritative server |
| **Three TOML configs** | `server_config.toml`, `permissions.toml`, `client_mod_policy.toml` (auto-generated on first boot) |
| **MultiplayerPlus** (optional) | Raise player cap from 4 → 20 |
First-launch checklist [#first-launch-checklist]
**Start the server from the panel.** Click **Start** on the **Dashboard**. The DedicatedServerMod boots in headless mode. The three TOML configs are auto-generated on first boot if they don't exist.
**Verify the listen port.** Open **Network → Allocations** in the panel — the assigned UDP port is what `serverPort` in `server_config.toml` will be set to. Default upstream is `38465`.
**Open the File Manager.** Edit `server_config.toml` to set:
* **Server name** and any branding fields in the top-level block
* Confirm `[authentication].authProvider = 'SteamGameServer'` for public servers
* Confirm `[storage].saveGamePath` is set (it should be already — the server refuses to start without it)
**Add yourself as operator.** Open **Console** tab and run:
```
op 76561198000000000
```
(replace with your SteamID64 from [steamid.io](https://steamid.io/)). Or edit `permissions.toml` directly — see [Operators, Admins & TCP Console](/docs/schedule-1/operators-admins).
**Decide on player cap.** Vanilla = 4. To raise it to 20, install the MultiplayerPlus mod on the server (and all clients). See [MultiplayerPlus →](/docs/schedule-1/multiplayerplus).
**Restart the server** for any config changes that need it (run `reloadconfig` / `reloadpermissions` in the **Console** for hot reloads where possible).
**Share your IP:port** with your crew. They install the **DedicatedServerMod client launcher** on their copy of Schedule I, type your IP and port, and connect directly — Steam P2P is bypassed entirely.
Config file references [#config-file-references]
See [Server Config Reference](/docs/schedule-1/server-config) for the full field list. Key blocks:
* `[storage]` — `saveGamePath` (required)
* `[authentication]` — Steam-based auth (recommended `SteamGameServer`)
* `serverPort` — top-level UDP port for gameplay (default 38465)
* `[messaging]` — FishNetRpc (default) or SteamNetworkingSockets
* `[gameplay]` — sleep, time progression, pause-when-empty
* `[webPanel]` — optional browser admin (off by default)
* `[tcpConsole]` — RCON-style TCP admin (localhost by default, port 4050)
The authoritative reference lives at: [docs.s1servers.com](https://docs.s1servers.com/).
Networking — ports [#networking--ports]
| Default | Field | Purpose |
| ----------- | ----------------------------- | -------------------- |
| `38465` UDP | `serverPort` (top-level) | Gameplay traffic |
| `27016` UDP | `steamGameServerQueryPort` | Steam server query |
| `4050` TCP | `[tcpConsole].tcpConsolePort` | Remote admin console |
| `4051` HTTP | `[webPanel].webPanelPort` | Optional web admin |
On XGamingServer hosting the gameplay port is pre-assigned in **Network → Allocations**; everything else binds to localhost by default and reaches you over an SSH tunnel.
The DedicatedServerMod **bypasses Steam P2P entirely**. Players connect via IP:port using the client launcher mod, not via Steam friends.
Linux / Docker hosting [#linux--docker-hosting]
The official repo ships Docker images supporting both **Mono** and **Il2Cpp** runtimes via environment variables. Linux native hosting needs Wine for the Mono runtime; Il2Cpp on Linux is in beta. For most users the smoother path is **Windows hosting**, which is what XGamingServer uses.
Related Guides [#related-guides]
* [Server Config Reference →](/docs/schedule-1/server-config)
* [Operators, Admins & TCP Console →](/docs/schedule-1/operators-admins)
* [Commands Reference →](/docs/schedule-1/commands-reference)
* [MultiplayerPlus — Raise the Cap →](/docs/schedule-1/multiplayerplus)
* [Web Panel →](/docs/schedule-1/web-panel)
* [Backup and Restore →](/docs/schedule-1/backup-restore)
* [Troubleshooting →](/docs/schedule-1/troubleshooting)
> **Need this fully managed?** [XGamingServer Schedule 1 hosting](https://xgamingserver.com/schedule-1-server-hosting) preinstalls MelonLoader + DedicatedServerMod + S1API on every plan. From **$17.50/month** (Rookie tier, 8 GB / 3 cores), 30% off your first month with code `XGAMEON`.