Beginner guide: survive the Sun
Set your controls, choose the next shaded position, read weather alerts and keep watching spiders even on moving objects.
Start RADIOSOL by learning to move between shaded positions, recognize hazards and leave useful radio markers. Chapter I is an exploration adventure: reaching the next story instruction matters more than searching every corner of the map.
Set controls before the first long crossing
The October 26 Weather Update added keybinding and sensitivity settings. Open Settings before setting out and choose controls that let you turn, move and interact comfortably. Invert Y, added October 8, is a separate option for looking around.
If a video uses a different button, follow your current binding. The marker-button prompt was corrected in the October 1 patch; an old prompt is a poor reference for a newly rebound control.
Use shade as a route, not just a rest stop
Avoiding the scorching Sun is the central survival task. Before leaving a wall, interior or overhang, identify the next covered position. Check the return route too: reaching a terminal is only useful if you can leave it safely.
- Inspect open ground before crossing rather than stopping in the middle to plan.
- Use the shelter supplied by the actual structures around you.
- If a detour exposes you for longer, reconsider it before committing.
- Keep hazard warnings visible and audio audible while reading or navigating.
Weather alerts matter now
The Weather Update made weather alerts functional and fixed disappearing solar flares. An alert deserves your attention before you leave cover. Keep a nearby sheltered route available instead of assuming the sky will remain harmless throughout a crossing.
There is no single warning duration given in the announcement. React to the current alert and surroundings rather than relying on a fixed number of seconds from an older guide. Improved shadows also reduce flicker and rendering artifacts; a graphics fix does not remove the Sun hazard.
Spiders can follow moving objects
Spiders are hazards to avoid, not enemies to defeat. The game's hazard audio helps you pay attention to what is near you; keep listening while choosing a way around a threat.
Since October 26, a spider can walk on moving objects. Do not treat a moving object as an automatic safe spot. Watch the spider's position and keep another route available rather than waiting for the object to carry you out of danger.
Recognize other damage and environmental warnings
RADIOSOL also includes Dust Devils and cognitive damage. The pre-launch updates tuned those hazards. October 8 added visual effects for suffocation and electric damage, making those situations easier to distinguish from ordinary sunlight exposure.
When a new warning appears, inspect the immediate environment before pushing farther into it. A flashing effect alone does not tell you to keep running in the same direction. Avoid applying an assumed sun-survival timer to a different hazard.
Radio markers and location hints
Radio markers persist, so leave them at junctions, entrances and places you want to return to. Use district names to distinguish similar-looking structures. Markers help you retrace your route; they are not a manual respawn-point feature.
The October 26 patch fixed location-hint spam. Repeated hint text in an older recording does not mean the player had several different objectives. Match the current hint to your district and check the nearby entrance or trigger.
If the first quest seems different from a video
The radio quest's maths puzzle was removed on October 8. Skip that old calculation and read the current quest text. The same patch fixed the transmitter-file softlock and preserved IIO console scroll position across save loads.
For a blocked Sphere route, the October 1 patch fixed the exit softlock and improved entrance directions; October 4 added hints and widened triggers. Install the current build before repeating an older workaround. The walkthrough separates these symptoms by location and action.
First-expedition checklist
- Read the tutorial and choose your keybindings, sensitivity and Invert Y preference.
- Locate the next shaded position before crossing exposed ground.
- Read weather alerts and keep a covered return route available.
- Listen for hazards, including spiders while you are on moving objects.
- Mark important entrances and junctions, then use district names when retracing them.
- Follow current radio instructions rather than the removed maths step.
For the chapter plan and platform details, see the release FAQ.
