MODWANTEDMod / Wanted · 2011 · IW 5.0

Call of Duty: Modern Warfare 3

2 projects let you play Call of Duty: Modern Warfare 3 together. Here's how they compare, and which one to start with.

Best bet so far

AlterWare IW5-Mod

Rated C (Rough), above No co-op project yet at X. None of these projects is fully playable together yet.

Website ↗

Every project, side by side

Best bet so far

AlterWare IW5-Mod

RoughAlpha builds, or partial sync without the story. Expect desyncs and crashes.

Kind

MOD Mod

Stage

Partial

Co-op

36%

Synced

See each otherUnknown
StoryNot synced
EnemiesUnknown
WorldUnknown
ItemsUnknown

Players say

Rate it and vote on its co-op %

Connect

Not stated

Players

Tested

Not checked

Features

Latest release

No release yet

Last activity

Active Oct 1, 2026

GitHub stars

About this project

Closed-source MW3 client focused on singleplayer/co-op plus multiplayer with bots and dedicated servers; both players need a Steam-owned copy. Its shared play is Spec Ops/Survival, not the campaign. A community Survival layer on top of it notes its Spec Ops co-op desyncs.

What you need

Your own copy of Call of Duty: Modern Warfare 3.

Sources

Project page ↗Co-op Anything write-up ↗Suggest a correction

No co-op project yet

None yetNo co-op project found for this game. Want to be the first?

Kind

WANTED Wanted

Stage

Wanted

Co-op

None yet

Synced

Players say

Rate it and vote on its co-op %

Connect

Not stated

Players

Not stated

Tested

Not checked

Features

Latest release

No release yet

Last activity

Unknown

GitHub stars

About this project

No campaign co-op has released for Modern Warfare 3 (2011) on any platform, and no project ships it; the singleplayer engine carries no netcode. Spec Ops/Survival co-op does exist (official, and via the AlterWare client). A from-zero attempt is written up in games/modern-warfare-3.

What you need

Not stated

Sources

Co-op Anything write-up ↗Suggest a correction

Know another co-op mod for Call of Duty: Modern Warfare 3? Submit it.