
ModSentry
Validates required and optional client mods before joining a Valheim server.Landoria ModSentry
ModSentry verifies that the mods installed on each client match the mods expected by the server. This lets every player use the same mods and play under the same conditions.
Features
- Uses the server's
BepInEx/config/ModSentry_Requiredfolder to define the mods and library DLLs required on every client. - Uses the server's
BepInEx/config/ModSentry_Optionalfolder to define mods and library DLLs that are allowed but not required on clients. - Rejects client mods and library DLLs that are listed in neither folder.
- Keeps server-only mods in the server's
BepInEx/pluginsfolder; they do not need to be listed inModSentry_RequiredorModSentry_Optional. - Requires every file approved by the server to have the expected version and SHA-256 hash.
- Automatically rejects the player when a difference is detected and shows an error identifying any extra, missing, or outdated mod.
- Supports an optional guest lobby for clients without ModSentry.
Installation
Most of Landoria mods need to be installed also on the dedicated server, we show you in this video how to do it on windows:
Setup a Valheim Modded dedicated server on Windows
| Crossplay support | Steam network support |
|---|---|
| Yes | No |
| Client required | Dedicated server required | Player-hosted server |
|---|---|---|
| Yes | Yes | Not supported |
Server configuration
ModSentry does not use command-line switches. Configure its client policy with these folders on the server:
| Folder | Purpose |
|---|---|
BepInEx/config/ModSentry_Required |
Contains every mod and library DLL required on clients. Include Landoria.ModSentry.dll here. |
BepInEx/config/ModSentry_Optional |
Contains mods and library DLLs that clients may use but do not need. |
Copy the approved client DLLs into the appropriate folder. ModSentry compares their plugin identifier, version, and SHA-256 hash with each connecting client. Any client DLL listed in neither folder is rejected.
Server-only mods stay in BepInEx/plugins and are not copied into either policy
folder.
To accept players who do not have ModSentry, see the guest lobby integration guide.
Contact
Report bugs through GitHub Issues. For questions and feedback, use GitHub Discussions.
All Landoria mods are used on the Landoria Valheim public servers.

