Unofficial fan guide
RADIOSOL Guide: Walkthrough, Map & Radio Puzzle Help
Cross RADIOSOL's sun-scorched megastructures with researched Chapter 1 routes, radio settings, landmark navigation, Calypso 5 probes and achievement help.
- Release
- Sep 30, 2026
- Platforms
- Windows / Linux
- Mode
- Single-player
- Story scope
- Chapter 1
Start here
Beginner Guide
Controls, sunlight rules, systems menu and the first route to Megapol.
OpenFull Walkthrough
Follow Chapter 1 through upgrades, puzzles, the Power Sphere and train.
OpenPuzzle Solutions
Train coupling, Depot radio, Radio 0 coordinates and fan terminal.
OpenCollectibles
Find all nine Calypso 5 probes and avoid the missable Odyssey task.
OpenWhat is RADIOSOL?
RADIOSOL is a single-player science-fiction exploration adventure developed by TripletConcept, Yodez, Hius and WhereaboutsUnknown. It launched on Steam on September 30, 2026, in a world devastated by a planetary catastrophe.
Players guide a many-limbed machine through abandoned cities and enormous artificial structures while avoiding deadly sunlight. Exploration emphasizes climbing, environmental observation, unusual movement, atmospheric storytelling and mysterious radio signals.
Research snapshot
- Steam reviews
- 222
- Positive reviews
- 77%
- Peak concurrent players
- 316
- Supported languages
- 7
Observed October 5, 2026 from Steam and SteamDB. Dynamic figures can change.
View Steam pageLatest updates
All updatesRADIOSOL October 2026 Recap: Patches & Navigation Fixes
RADIOSOL's October 2026 recap summarizes official patches through October 4, including download fixes, performance work, navigation hints and softlock repairs.
RADIOSOL September 2026 Recap: Launch & Chapter 1
RADIOSOL's September 2026 recap covers the verified September 30 launch, Chapter 1 scope, Steam platforms, developers and the confirmed single-player structure.