Play Factorio LAN Over Internet
The Problem
Factorio multiplayer requires either using the public server browser or setting up port forwarding for direct connections. Many players want private sessions with friends without exposing their IP or dealing with router configuration.
The Solution
MoleTun creates a virtual LAN that allows direct IP connections without port forwarding. Host your factory, friends connect via IP—simple and private.
Setup Guide
Download MoleTun
Get MoleTun for Windows, macOS, or Linux. Quick installation.
Create a Room
Open MoleTun, click 'Create Room', share the 6-digit code with your factory engineers.
Friends Join
Friends enter your code. Everyone's on the same virtual network.
Host the Game
In Factorio, click Play → Multiplayer → Host new game (or load saved game). Set a password if desired.
Friends Connect
Friends click Play → Multiplayer → Connect to address → enter your MoleTun IP (and port 34197 if needed).
Factorio-Specific Settings
- •Default port: 34197 (UDP)
- •All players must have the same game version
- •Mods must match exactly between all players
- •Save files are stored on the host's computer
Pro Tips
- •Use the same mod set for all players (sync via mod portal)
- •The host's PC specs affect simulation speed (UPS)
- •Factorio's built-in "Connect to address" option works perfectly with MoleTun IPs
- •For megabases, consider rotating who hosts based on best hardware
Factorio is incredibly well-optimized for multiplayer. Even complex factories run smoothly with MoleTun's low-latency P2P connections.
Android Gaming
Factorio is a PC game, but can run on Android using x86 emulators like Winlator. Combined with MoleTun, automate factories on the go.
Does this work with mods?▼
Yes! Mods work perfectly. All players need the exact same mod versions installed. Use Factorio's mod sync feature.
How many engineers can build together?▼
Free tier supports 3 players, Pro supports 8, Elite allows unlimited. Factorio itself has no player limit.
What about save file compatibility?▼
Save files work normally. The host's save is used, and progress is saved to their computer.
Can I use Space Age expansion?▼
Absolutely. All DLC and expansions work over MoleTun. Everyone needs the same content.
Ready to Play Factorio?
Download MoleTun and start playing in under a minute.
Download MoleTun