Join a Schedule I Server: Set Up Mono, MelonLoader and the Mod

To join a Schedule I server at RespawnHost, every player needs three things: the Mono version of the game (Steam beta “alternate”), MelonLoader, and the Mono client of DedicatedServerMod in the same version as the server. Then you connect from the main menu via Servers using the IP and port shown in the panel.

What do I need to join a Schedule I server?

What	On our servers	Where from
Game version	Mono (Steam beta alternate)	Steam, Schedule I properties
Mod loader	MelonLoader 0.7.2	github.com/LavaGang/MelonLoader
Server mod, client part	DedicatedServerMod, file Mono-Client.zip, currently version 1.0.0	github.com/ifBars/S1DedicatedServers
Connection	IP and port of your server	Panel overview

As of 15 September 2026. Which mod version your server uses right now is shown in the console on startup, see below.

Why do I need the Mono version?

Schedule I comes in two technical variants: the default version (Il2Cpp) and the Mono version, which TVGS offers as the Steam beta “alternate”. Mods are built for one of the two. An Il2Cpp mod does not run on Mono and vice versa. Our Schedule I servers run the Mono version, so every player needs Mono as well.

Step 1: Switch Schedule I to the Mono version

1. In Steam, open your Library, right-click Schedule I and choose Properties.
2. Select Betas on the left and set the beta participation to alternate.
3. Wait until Steam has downloaded the update.

Step 2: Install MelonLoader

1. Download the MelonLoader installer from the MelonLoader releases page.
2. Run the installer and select your Schedule I folder. In Steam you find it by right-clicking Schedule I, then Manage and Browse local files. Install version 0.7.2, the same as on our servers.
3. Start Schedule I once and close it again. MelonLoader then creates the Mods folder in the game folder.

Step 3: Install the DedicatedServerMod client

1. Open the DedicatedServerMod releases and pick the version your server runs (currently v1.0.0).
2. Download Mono-Client.zip. You do not need the Il2cpp or server files.
3. Extract the ZIP straight into your Schedule I folder. Afterwards the file Mods/DedicatedServerMod_Mono_Client.dll is in place.

Which mod version is my server running?

On startup your server writes the MelonLoader messages to the console in the panel, each marked with [melon]. They include the loaded DedicatedServerMod and its version number. That is exactly the version you download in step 3.

Step 4: Connect to the server

1. Start Schedule I. The main menu now has a Servers button.
2. Open the direct connection there (Direct Connect), enter your server’s IP and port from the panel overview and click Connect.
3. Alternatively, save the server as a favorite via Add Favorite Server with the fields “IP / Host” and “Port”. It then shows up in the list next time.

What if connecting does not work?

Symptom	Most common cause	Fix
No “Servers” button in the main menu	Client mod missing or in the wrong folder	The DLL has to be in Mods/ inside the game folder
MelonLoader crashes on startup	Default version (Il2Cpp) installed instead of Mono	Set the Steam beta to “alternate”
Connection is refused or drops	Client and server use different mod versions	Install the Mono client in the server’s version
Nothing works after a Schedule I update	The mod does not match the new game version yet	Wait for a mod update or ask our support

MelonLoader writes a log to MelonLoader/Latest.log in the game folder. Feel free to send it along when you contact support.

FAQ

Can I join with the regular Steam version of Schedule I? No, our servers run the Mono version, and the Mono client only works on the Steam beta branch “alternate”.

Do I have to use the latest DedicatedServerMod version? No, you need exactly the version your server runs.

Does every player need this setup? Yes, everyone who wants to join needs the Mono version, MelonLoader and the matching client.

Can I switch back to the regular version? Yes, set the beta participation in Steam back to the default version.

What RespawnHost recommends

Set up the Mono version, MelonLoader and the client together once, ideally before your first evening on the server. When Schedule I gets a larger update, create a backup in the panel first. After updates the mod sometimes needs a few days until it fits again.

Software and credits

Our Schedule I servers run DedicatedServerMod (S1DedicatedServers) by ifBars, an open source project under GPL-3.0. Source code and releases: github.com/ifBars/S1DedicatedServers, documentation: docs.s1servers.com. We are not an official or project-recommended host.

No server yet? Rent a Schedule I Server