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Macka edited this page Nov 29, 2025
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The Derail Valley Multiplayer Mod adds multiplayer capabilities to Derail Valley.
At present, this mod only supports Steam versions of the game; Meta Store versions are not supported, but support may be added in the future. Pirated versions are not supported; please support Altfuture and buy a legitimate copy!
For users wanting to install the multiplayer mod, please see the instructions.
For mod developers wanting to make their mod compatible with multiplayer or set the compatibility status of your mod, please see the Mod API documentation.
- Up to 10 players (one player hosting, and up to 9 others connecting)
- Shared licences
- Shared wallet
- Train sync
- Manual Service
- Job sync
- Date/time sync
- Anime Character (Unity-Chan!)
- Steam Networking
- No port forwarding required!
- Lobby browser
- LAN discovery
- Dedicated servers
- Item Sync
- Demonstrator vehicles (partially supported)
- Multiple/alternate characters
- Company mode
- Clients can not call work trains
- Clients can not spawn trains in sandbox
Getting Started
Guides
- The Basics
- Packet Naming Conventions
- Defining Packets
- Registering Packet Listeners
- Sending Packets