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About Online: 404
Online: 404 drops you into a sealed, abandoned district where everyday items become survival tools. Your smartphone is the central device, offering a map, flashlight, weather forecast, and an in‑game Internet for looking up crafting ideas, while also showing ads and sometimes unreliable data.
The game supports solo play and online co‑op, letting you build shelters, scavenge resources, restore a car for faster travel, and follow a story that uncovers what happened to the district’s former residents.
01 / THE GUIDE
Smartphone as Survival Tool
The phone serves as the primary interface for navigation and illumination. It displays a map of the district, a flashlight for dark areas, and a weather forecast that can influence when you venture outside.
It also provides an in‑game Internet where you must look up crafting recipes and survival tips. Ads and occasionally inaccurate data appear, reminding you that the device can help or hinder your progress.
- Check the forecast before heading out to avoid unexpected storms.
- Note resource locations you discover for later reference alongside the map.
02 / THE GUIDE
Fortifying Your Shelter
Wood is the base material for building shelters, but you can reinforce walls by bolting scavenged vehicle parts such as car doors or hoods to wooden structures, making entry harder for unwanted visitors.
Scavenging nearby abandoned houses and vehicles can reveal additional items that can be attached to your shelter, increasing its resistance.
- Inspect nearby vehicles for doors or hoods that can be removed and bolted to walls.
- Gather extra timber before expanding your shelter to keep a solid foundation.

03 / THE GUIDE
Exploration and Vehicle Restoration
The Leminsgale District can be explored on foot, but restoring an old car lets you travel across the area more quickly. Useful components for the car can be found around the district.
You do not craft complex items like solar panels from scratch; instead, you repurpose existing components to power your shelter or get the car running, simplifying the process of gaining electricity and mobility.
- Prioritize finding the key functional parts before cosmetic touches.
- Note where you find vehicle parts to plan efficient scavenging routes.
04 / THE GUIDE
Story and District Mystery
The sealed district was never fully evacuated, leaving some residents wandering in a disturbed state. Together with a former resident, you investigate possible causes such as an epidemic, a fungus, or something worse.
Uncovering these clues drives the campaign forward, giving context to the survival tasks you perform while exploring the abandoned environment.
- Pay attention to what the former resident tells you about past events.
- Take note of unusual items you find; they may relate to the district’s collapse.
05 / THE GUIDE
Multiplayer Co‑op Options
Online: 404 supports both single‑player and online co‑op modes. You can tackle the story campaign alone or invite friends to join the same world for shared exploration and building.
Four characters are available, each with distinct stats and starting gear. Co‑op lets you team up for the story campaign or simply mess around together.
- Coordinate each player’s starting gear to cover a broader range of needs.
- Share smartphone information to avoid duplicated searches for the same resource.





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