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Box art for Fallout: New Vegas
MODTOOLMod / Framework or tool · 2010 · Gamebryo

Fallout: New Vegas

2 projects let you play Fallout: New Vegas together. Here's how they compare, and which one to start with.

B
Recommended

NV:MP

Rated B (Playable), above fnv-coop at D. It has partial story sync and synced enemies.

Website ↗

Every project, side by side

Recommended

NV:MP

B
PlayableYou can play together, with known gaps in what syncs or a rough setup.
Kind
MOD Mod
Stage
Playable
Co-op
78%
Synced
  • See each otherUnknown
  • StoryPartly
  • EnemiesSynced
  • WorldPartly
  • ItemsUnknown
Players say
Rate it and vote on its co-op %
Connect
Dedicated server
Players
Not stated
Tested
Player reports
Features
Partial story syncSynced enemiesPlayer reports
Latest release
No release yet
Last activity
Stalled Nov 1, 2025
GitHub stars
-
About this project

Host-authoritative co-op where the host's inventory and quests are synchronised per its 2016 description, but core client and server binaries are closed; launcher and a server SDK mirror are public. Quest and encounter handling is client-side, so full story sync is not guaranteed.

What you need

Your own copy of Fallout: New Vegas.

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

fnv-coop

cranebeakerCo-op Anything

D
ExperimentalPrototype, research build, or abandoned before it got far.
Kind
TOOL Framework or tool
Stage
In development
Co-op
29%
Synced
  • See each otherUnknown
  • StoryPartly
  • EnemiesUnknown
  • WorldPartly
  • ItemsUnknown
Players say
Rate it and vote on its co-op %
Connect
Not stated
Players
2-4
Tested
Automated tests
Features
Made with Co-op AnythingPartial story syncOpen sourceAutomated tests
Latest release
No release yet
Last activity
Active Oct 18, 2026
GitHub stars
7
About this project

Developer preview of a story layer (xNVSE plugin plus sync core) meant to run next to NV:MP; no player release yet. Automated tests cover the sync core, host capture and guest apply of quest-script effects, and quest-stage sync between two real game copies. MIT licensed.

What you need

Not stated

Sources

-

Repository ↗Co-op Anything write-up ↗Suggest a correction

Know another co-op mod for Fallout: New Vegas? Submit it.