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Box art for Fallout
FORKFork or port · 1997 · Fallout CE

Fallout

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

C
Best bet so far

fallout1-coop by FadingTwo

Rated C like fallout1-companion-coop, but further along: partial, against in development. It has open source code. None of these projects is fully playable together yet.

Repository ↗

Every project, side by side

Best bet so far

fallout1-coop

FadingTwo

C
RoughAlpha builds, or partial sync without the story. Expect desyncs and crashes.
Stage
Partial
Co-op
60%
Synced
  • See each otherUnknown
  • StoryUnknown
  • EnemiesUnknown
  • WorldUnknown
  • ItemsUnknown
Players say
Rate it and vote on its co-op %
Connect
Direct IP
Players
2
Tested
Not checked
Features
Open source
Latest release
v1.19 Oct 20, 2026
Last activity
Active Oct 20, 2026
GitHub stars
0
About this project

Two-player co-op on Fallout Community Edition over LAN, internet or one PC, each with their own character. Online server list needs a separate co-op server. Release 1.5.9 seen, last push 2026-10-16.

What you need

Your own copy of Fallout.

Sources
Repository ↗Suggest a correction

fallout1-companion-coop

00kopatich00-alt

C
RoughAlpha builds, or partial sync without the story. Expect desyncs and crashes.
Stage
In development
Co-op
35%
Synced
  • See each otherUnknown
  • StoryUnknown
  • EnemiesUnknown
  • WorldUnknown
  • ItemsUnknown
Players say
Rate it and vote on its co-op %
Connect
Direct IP
Players
2
Tested
Not checked
Features
Open source
Latest release
v0.6 Oct 3, 2026
Last activity
Active Oct 16, 2026
GitHub stars
2
About this project

Host plays normally and the second player joins as a human-controlled companion. Author calls it early and rough; v0.6 adds combat sync, known VPN issues and no companion combat perks.

What you need

Your own copy of Fallout.

Sources
Repository ↗Suggest a correction

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