Planetbase Co-op
Elwynn18Co-op Anything
C
RoughAlpha builds, or partial sync without the story. Expect desyncs and crashes.
Stage
In development
Co-op
54%
Synced
- See each otherPartly
- StoryUnknown
- EnemiesUnknown
- WorldSynced
- ItemsShared
Players say
Connect
Steam (no port forwarding)
Players
2+
Tested
Automated tests
Features
Made with Co-op AnythingShared worldShared itemsEasy join, no port forwardingOpen sourceAutomated tests
Latest release
No release yet
Last activity
Active Oct 25, 2026
GitHub stars
0
About this project
BepInEx 5 (x86) plugin for Planetbase 1.4.2, host-authoritative mirror. The joiner loads the host's colony from a save built in memory, its simulation is frozen, and its actions are replayed on the host. Players have no avatar; other players' building and component previews show with their name. Steam invites or direct IP (TCP 47610). Windows, or Linux through Proton. Two-copy automated suite under Proton 16/16 with mutation twins (direct IP); the author reports two-PC sessions joined through Steam invites. Tested with two players only. One-file installers for Windows (.bat) and Linux (.sh) install BepInEx and the mod with SHA-256 checks. MIT. Write-up in games/planetbase.
What you need
Your own copy of Planetbase.
Sources