RADIOSOL

RADIOSOL is a first-person journey through the ruins of a world burned by a planetary cataclysm. You navigate the remains of megastructures and abandoned cities while avoiding the scorching rays of the Sun — and somewhere in the quiet, you are looking for answers. Chapter I released September 30, 2026.

The game is tagged as a walking simulator and an exploration-driven adventure, and the pitch is close to literal: you walk, you look, you listen — but the Sun is the antagonist, and the world still hides things worth finding off the main path.

What's confirmed

• Release: Chapter I launched September 30, 2026 — Windows and Linux, seven languages (English, Russian, Japanese, Simplified Chinese, French, German, Spanish). US store listed $8.99 on October 29, 2026, with no discount.
• Format: story chapters, not DLC. The devs have said later chapters arrive as updates to the base game, and the price rises after Chapter II.
• October 8 quest changes: an Invert Y option, new suffocation and electric-damage effects, new location hints, the IIO console now keeps its scroll position across saves, and the radio quest's math puzzle was removed after player complaints.
• Survival, not power fantasy: you avoid the Sun's beams and don't need to fight anything — the launch build ships with tuned hazard systems (spiders, Dust Devils, cognitive damage) that live on atmosphere, not combat depth.
• Saving that stays saved: the 9/22 pre-launch build made radio markers persistent — place them, keep them.
• Exploration is optional where it counts: the developer's own words — searching every inch of the map isn't required to progress, but there are things to discover off the main path.

Weather Update — October 26, 2026

Weather alerts now matter, settings include keybindings and sensitivity, and spiders can walk on moving objects. The update also fixes disappearing solar flares, predictor trajectories, repeated hints, underground messages and duplicate downloads. Odyssey progress was fixed in the October 21 silent patch.

Check the beginner guide before your next crossing and the walkthrough if a quest or download is blocked.

First hour, five habits

1. Read the tutorial text. It was rewritten right before launch; it tells you how the Sun actually kills.
2. Walk shade to shade. Concrete blocks the light — learn to read the shadows of megastructures like streets.
3. Listen, don't stare. Audio is wired into the spider damage system; your ears warn you before your eyes do.
4. Drop radio markers as breadcrumbs. They persist, so every marker you leave is a gift to your future self.
5. Wander off-path — on purpose. Files and set-pieces reward detours, while keeping a safe return route.

Pick your next route

• Following the critical path? The Chapter I walkthrough helps with location hints, radio instructions, downloads and Sphere blockers.
• Stuck at the Sphere or confused by a direction hint? Use the beginner guide with the October 1 navigation fixes.
• Trying to follow the world and Chapter I story? Open story and world.
• Checking your PC or platform? See system requirements and the release FAQ.