Online 404 Multiplayer
Online: 404 supports single-player plus online co-op for up to 4 players. Learn how lobbies, shared bases and co-op survival work.
What is Multiplayer?
Online: 404 ships with single-player and online co-op for up to 4 survivors. These guides explain hosting, joining friends, dividing roles and surviving together - or how the experience changes when you play alone.
Why learn the co-op systems?
Team Up Correctly
Understand lobbies, invites and how a 4-player squad shares the story and the world.
Divide and Conquer
Split scavenging, building and defense roles so your group progresses far faster than solo play.
Handle the Edge Cases
Know how demo co-op works, what happens when players leave and the crossplay expectations.
Featured & Essential

Online 404 Multiplayer: Co-op Setup & Team Survival Tips
Online 404 multiplayer guide: how co-op works, 4-player teams, character roles, shared bases, raids, and multiplayer survival tips.

Online 404 How Many Players: Co-op Size & Limits Explained
Online 404 supports up to 4 players in online co-op. Learn party size, solo play, characters, and multiplayer features before the October 2026 launch.
All Multiplayer Articles

Online 404 Co-Op: Multiplayer Survival Tips & Demo Guide
Learn how Online 404 co-op works: multiplayer zombie survival, team roles, crafting, base building, and demo tips in this wiki guide.

Online 404 Crossplay: Multiplayer Setup & Platform Guide
Is Online 404 crossplay supported? How co-op multiplayer works on PC, platform availability, player limits, and co-op survival tips.

Online 404 Demo Multiplayer: Co-Op Survival Tips & Setup
Learn how Online 404 demo multiplayer works: co-op mechanics, character picks, survival systems, and tips for the Lemmingsgale County demo.