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Multiplayer: Difference between revisions

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{{Experimental|Alpha 0.11.0}}


The multiplayer feature was introduced with v0.11.0 and will be thought only for ''Lan-parties'' or ''Low-latency internet'', because there is no much lag latency hiding mechanics introduced.
The multiplayer feature was introduced with v0.11.0 and will be thought only for ''Lan-parties'' or ''Low-latency internet'', because there is no much lag latency hiding mechanics introduced.

Revision as of 08:45, 11 June 2015


The multiplayer feature was introduced with v0.11.0 and will be thought only for Lan-parties or Low-latency internet, because there is no much lag latency hiding mechanics introduced.

The game is technically a peer2peer game. Which means, there is no server needed.

Anybody can join an existing game, if he knows the IP of the game. He connects to the game, the game stops and the second players game downloads the current map. If the first hoster stops, the second player can continue to play and the first player can rejoin at any time. If the game desynchronizes, the map is redownloaded automatically and the game can continue.

Playing over LAN / Internet

Playing over Internet was not thought to work properly with v0.11. Noticeable lag could occur depending on connection speed/reaction time.

  • Both game instances need the installation of exactly same game-versions and mods. (Tip: Maybe someone has the scenario pack mod off?)
  • For a more fluid game the "clients" can turn off autosave.
  • Factorio uses the port 34197. The port can be changed in the config.
  • Factorio uses UDP only, so make sure, you configured your router correctly. (The game builds it's own "reliable delivery" layer built on UDP to deal with packet loss and reordering issues.)
    • Make sure, that there is no firewall or anti-virus blocking the UDP-packets.
    • read further, look into "more guides", to configure your router set up.
    • It is necessary that all of the peers can communicate with each other. It is however in theory not necessary that all the peers have public IP address - this should work even behind a NAT. See Cube in Cannot Have 3+ Players connected at the same time.
  • The hard limit for the number of players is 65535. :)

Voice Chat

  • it is recommended to use some voice chat (teamspeak, Skype), because you need to talk a lot (coordinate connection, building, handling attacks...). Teamspeak servers are posted in the multiplayer forum.

Finding other Peers

  • use the multiplayer board in the forum.
  • many players use other software like Hamachi or Evolve to meet other players ... This has the "advantage" of creating a virtual private network between the players. See down under software.
  • some use also Steam to find others.

Factorio servers or Why Peer-to-Peer?

There where some discussions about, why Factorio doesn't use the client+server-model, but instead uses the peer-to-peer-priniciple. With v0.11 there will be no explicit support for making Factorio "servers". That will come with v0.12!

If you want to make a world running 24/7 you need to start whole Factorio on your "server" machine and keep it running, it works just as a peer. The server instance will then have a character in the game just like anybody else.

Some links

Headless server

Game types

Coop

Coop-game runs without any further preparation ( http://www.factorioforums.com/forum/viewtopic.php?f=53&t=6501 )

PvP

Technical Implementation

More Tools/Infos

And always remember that Factorio in v0.11 isn't intended to work well on internet connections, so keep patient. ;)

More Guides

Miscellaneous tips

  • the key for Console commands will now initiate a chat in MP. To execute commands you need to type '/c' before the command!
  • Set the player's color using the command
/c game.players[x].color = {r=0.7, g=0.5, b=0.1, a=0.9}

Where x is the player number. r, g and b are for red, green and blue respectively (possible values are between 0 and 1, use the right-most column on http://prideout.net/archive/colors.php). a is alpha channel aka Transparency of the color to the base texture. For single player, leave off the "[x]" to set the color.

Software for routing / establishing connection


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