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Just Cause 2: Multiplayer Mod

Just Cause 2: Multiplayer Mod

JC2-MP is a project to bring multiplayer to Just Cause 2 in all of its magnificent glory. Imagine the chaos of normal Just Cause 2, then extending it out to dozens, hundreds, and even thousands of players.

Released Dec 16, 2013 Developer Avalanche Studios Publisher Square Enix Platforms Windows Open WorldMultiplayerActionThird-Person ShooterAdventure
View on Steam ↗ Free (US · as of 2026-07-26)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Data as of 2026-05-20.

91.6%positive14,804 reviews
Recommended · 4 found this helpful

“i started this dlc/mod before i even play the single game xD and still i didnt touch the main game ! but with this multiplayer mod it was so fun and nice to play i met nice people i spent much fun time there and i got nice memories for this... for achievements hunters RUN! dont…”

— a player, Steam review · 786 hrs played
Recommended · 1 found this helpful

“titan of gaming”

— a player, Steam review · 81 hrs played
Recommended · 0 found this helpful

“everything”

— a player, Steam review · 21 hrs played
Read more reviews ↗

Player activity

Monthly average concurrent players. Live count fetched 2026-07-11 12:05 UTC · history via SteamCharts.

2playing at last check
824-hour peak
10,436all-time peak
0 2.5k 5k 2014 2016 2018 2020 2022 2024 2026 2.1k avg · Dec 2013

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-07-25.

20achievements
13.0%median completion
0.0%rarest: Power Surge
38.7% of players 28.9% of players 17.4% of players 15.6% of players 15.0% of players 15.0% of players 14.5% of players 14.0% of players 13.3% of players 13.1% of players 13.0% of players 13.0% of players 12.9% of players 12.9% of players 6.5% of players 1.7% of players 0.1% of players 0.0% of players 0.0% of players 0.0% of players 38.7% 0% most earned rarest
Almost everyone has
38.7%Welcome to Panau — Connect to a server for the first time
28.9%Incendiary Sightseer — Play for an hour
17.4%I Want To Break Free — Reach the upper limit of the sky in a plane
Rarest badges of honor
0.0%Power Surge — Kill 10 players at Awan Sendawan Power Plant
0.0%Oil for Blood — Kill 100 players at any offshore rig
0.0%Firestarter — Kill 1,000 players by any means possible

Price tracking

US-region pricing (USD), sampled twice daily by our own tracker since 2026-07-11. Steam prices vary by region — always confirm your local price on Steam.

Freecurrent · sampled 2026-07-26 08:39 UTC
Freelowest since tracking began2026-07-11

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

May 28, 2017
0.3 Released

Bug Fixes Shared Fixed an issue where attempting to steal Tuk-Tuk or an ATV could result in the hijacker getting stuck in a bugged state StaticObjects with the `fixed` flag set to false will now prope

May 28, 2017
0.3 Released

Bug Fixes Shared Fixed an issue where attempting to steal Tuk-Tuk or an ATV could result in the hijacker getting stuck in a bugged state StaticObjects with the `fixed` flag set to false will now prope

Oct 23, 2016
0.2.3 Release

0.2.3 Patch Bug Fixes Client Hopefully fixed the crashes that have plagued AMD users for many months. We have reported a solution and details surrounding the bug to AMD. Fixed a bug on AMD cards where

Oct 23, 2016
0.2.3 Release

0.2.3 Patch Bug Fixes Client Hopefully fixed the crashes that have plagued AMD users for many months. We have reported a solution and details surrounding the bug to AMD. Fixed a bug on AMD cards where

Feb 13, 2016
0.2.2 Released

0.2.2 Patch Bug Fixes Shared Fixed Stuntshooter achievement incorrectly increasing stats for all vehicles, rather than just airplanes Client Fixed a bug introduced by ShapeTrigger entities where Check

Games like Just Cause 2: Multiplayer Mod

From our knowledge graph — ranked by shared traits, not a black box. Each card says why it's here.

Blockland Blockland 74.5% · 4,204 reviews shares Moddable, Zombies, Racing, Sandbox Just Cause 2 Just Cause 2 91.8% · 24,430 reviews shares Moddable, Third Person Shooter, Sandbox, FPS Just Cause™ 3: Multiplayer Mod Just Cause™ 3: Multiplayer Mod 79.8% · 1,450 reviews shares Mod, Massively Multiplayer, Third Person Shooter, Sandbox Grand Theft Auto V Legacy Grand Theft Auto V Legacy 83.6% · 641,904 reviews shares Moddable, Third Person Shooter, Racing, Sandbox Just Cause™ 3 Just Cause™ 3 85.1% · 57,532 reviews shares Moddable, Third Person Shooter, Sandbox, Co Op Grand Theft Auto V Enhanced Grand Theft Auto V Enhanced 79.3% · 64,932 reviews shares Moddable, Third Person Shooter, Racing, Sandbox MudRunner MudRunner 90.9% · 12,208 reviews shares Mod, Moddable, Racing, Sandbox No More Room in Hell No More Room in Hell 89.1% · 30,320 reviews shares Mod, Massively Multiplayer, Zombies, Free To Play

Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-05-20.

GenresAction, Adventure
Player tagsOpen World · Multiplayer · Action · Third-Person Shooter · Adventure · Mod · Sandbox · Massively Multiplayer · Shooter · Free to Play · Third Person · Co-op (SteamSpy community voting)
FeaturesSingle-player · Multi-player · Steam Achievements · Partial Controller Support
LanguagesEnglish * , French * , German * , Italian * , Spanish - Spain * , Polish, Russian *
Achievements20
Estimated owners2,000,000 – 5,000,000 (SteamSpy)
Official sitehttp://www.jc-mp.com
Minimum system requirements (PC)

Minimum: OS *: Microsoft Windows Vista (Windows XP is unsupported) Processor: Dual-core CPU with SSE3 (Athlon 64 X2 4200 / Pentium D 3GHz) Memory: 2GB System Memory Hard Drive: 10GB of free drive space Graphics: DX10 compatible graphics card with 256 MB of memory (Nvidia GeForce 8800 series/ ATI Radeon HD 2600 Pro) Sound: 100% DirectX 10 compatible sound card DirectX®: Microsoft DirectX 10