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Online: 404 is an open-world co-op survival simulator from Cornfield Games. Instead of magic crafting recipes, your smartphone keeps you alive: you search the in-game internet for real guides, scavenge a quarantined district, build shelter, hunt and farm, and piece together what happened to the people who lived there.
Switch locations any time. DDoS protection available.
Online: 404 supports solo play and online co-op for up to four players, the team size Cornfield Games announced. We will confirm the player count on our own servers and update this page.
Cornfield Games does not offer a dedicated server: co-op runs from one player's game, so friends can only play while that player is online. We are working on Online: 404 server hosting that keeps your world online around the clock. Join the notify list on this page to hear first when it is ready.
Online: 404 is an open-world survival simulator you can play solo or in online co-op, either following the story or free-roaming the quarantined district. There are four playable characters, and the smartphone-driven crafting loop replaces the usual recipe menus.
Online: 404 is an open-world co-op survival game from Cornfield Games where your phone is your most important tool. You scavenge an abandoned quarantined area, look up real crafting guides on the in-game internet instead of unlocking magic recipes, build shelter, hunt and farm, and uncover what happened to the district's former residents. It entered Early Access on Steam on October 21, 2026.
Mod support has not been confirmed yet. We'll update this page with modding details as Cornfield Games reveals more during Early Access.