Currently the developers are putting their own money into JC2-MP to keep the servers online.

Please take a few seconds of your time and disable your AdBlock plugin for our website.

Ad revenue is not going to developers, it is used purely for covering our hosting costs.


You are also free to donate, which removes all ads from our website!

RT @theHunterPrimal: We've just gone live on Steam Early Access! Get it, play it, tell us what you think!

6 days ago

Welcome to Just Cause 2 Multiplayer!

Your favourite open world game now has multiplayer! Keep informed about future updates by following us on Twitter, Facebook, Steam or the site.

Grab latest client and server

Join 827 players!
Play on Steam Host a Server Latest version: 0.1.4a / 21st of June 2014
Most Recent News

0.1.4b Released

Published august 30, 2014, 10:45:10 am 6

0.1.4b Update
Available now via Steam

Key Information

New API Features:
For server owners
Updating the server is not required, but it is highly recommended to fix a server query crash.

Complete 0.1.4b Changelog

New Features
  • Added World.GetById
  • Added --name launch option to override Steam name
  • Added Chat:GetUserEnabled

Bug fixes
  • Fixed SQL sometimes writing garbage data if an SQLCommand was stored and user later (the values could be garbage collected)
  • Fixed Worlds being removed when they were sent through events
  • Made Player:HasVehicleDLC and Player:HasWeaponDLC return true if the id is a non-DLC item
  • Fixed case where modules could be loaded multiple times if loaded via a relative path
  • Fixed crash on exit caused by static object destruction
  • Fixed player model 20 (invisibledoll) not working
  • Fixed crash where two players could enter the cling stunt position at the same time
  • GWEN: Fixed TextBoxes (and other controls) accepting focus when disabled
  • GWEN: Fixed Labels with word wrap not using the text color

Note: a running changelog for each new version is maintained on the wiki, see here.

Highlighted Server Cycling

Published july 06, 2014, 03:47:56 am 6

Hi everyone,To accommodate the addition of a new highlighted server (Problem Solvers), we'..

0.1.4a Release

Published june 21, 2014, 04:25:09 pm 10

0.1.4a UpdateAvailable now via SteamKey InformationNew API Features:ClientLight A dynamic,..

0.1.4 Announcement

Published march 08, 2014, 11:37:33 am 70

0.1.4 ReleaseAvailable now on SteamShown in the video:EarthquakesReal-time vehicle colour ..

0.1.3 Release

Published january 30, 2014, 03:17:31 pm 4

0.1.3 ReleaseKey InformationThis is a minor release that is backwards compatible with 0.1...

0.1.2 Release

Published january 23, 2014, 09:09:34 am 16

0.1.2 ReleaseKey InformationServer OwnersAs of 0.1.2, the PlayerStreamDistance, VehicleStr..

0.1.2 Announcement

Published january 19, 2014, 04:22:31 pm 21

0.1.2 Release23rd January 2014 08:00 UTCKey InformationGeneralAs this update is quite larg..

0.1.1 Changelog

Published december 21, 2013, 03:04:13 pm 27

0.1.1 ReleaseKey InformationPlease back up your server's config.lua before updating your s..

JC2-MP 0.1.0 Released!

Published december 16, 2013, 05:57:53 pm 82

0.1.0 Release16th December 2013 17:00 UTCJC2-MP is out now!Download the client from theSto..

More news