- RADIOSOL release date: September 30, 2026 — the game is out now on Steam (AppID 2934330)
- Developer: Triplet Concept, a small indie team behind this first-person sci-fi adventure
- Core gameplay: Open-world exploration, radio signal decoding, and a spider robot companion
- Platform: Currently a PC (Steam) release, with full Steam Deck verification
- Day-one tip: Wishlist holders get launch-window news; check the Steam page for regional unlock times
RADIOSOL Release Date: Everything Confirmed
The RADIOSOL release date arrived on September 30, 2026, marking the launch of Triplet Concept's first-person open-world sci-fi adventure on Steam. Announced in 2025 as a quietly ambitious indie project, the game built steady anticipation among fans of atmospheric exploration games — and now that launch day has passed, players can finally step into its sun-scorched world.
RADIOSOL blends survival mechanics with a signature radio system: you sweep frequencies, decode encrypted broadcasts, and follow signals across an irradiated open world alongside a spider robot companion. The name itself — RADIO + SOL (sun) — captures the game's visual identity of amber-orange light cutting through static-filled airwaves.
Here is the confirmed launch information at a glance:
| Item | Detail |
|---|---|
| Release date | September 30, 2026 |
| Developer | Triplet Concept |
| Platform | PC (Steam), AppID 2934330 |
| Genre | First-person open-world sci-fi adventure |
| Announced | 2025 |
| Steam Deck | Verified |
RADIOSOL is live on Steam as of September 30, 2026. If you wishlisted during the pre-launch window, check your Steam queue — the store page includes the official launch trailer and current update notes.
What Launches With the Game: Core Features
Launch-day RADIOSOL ships with the full main campaign across four story chapters, the complete open world, and the companion system that defines the experience. Understanding what's included helps you decide how deep to go on day one.
| Feature | Description | Day-One Status |
|---|---|---|
| Main story | 4 chapters from first signals to final broadcast | Included |
| Radio system | Frequency tuning, signal tracking, cipher decoding | Included |
| Spider robot companion | Scouting, harvesting, upgrades, bond storyline | Included |
| Open world | Multiple regions, radio towers, underground facilities | Included |
| Multiple endings | 4 ending branches shaped by choices | Included |
Radio Tuning
- Sweep the dial and listen for clear audio
- Signal strength guides you to story locations
- Secret frequencies hide optional lore
Spider Companion
- Scans hazards and marks loot through walls
- Harvests materials from dangerous zones
- Trust system unlocks ending branches
Open-World Survival
- Manage radiation, stamina, and supplies
- Repair radio towers to extend range
- Rest points double as fast-travel anchors
New players should prioritize the opening sequence: it hands you the handheld radio and introduces the spider robot within the first hour. Learning audio-based tuning early makes every later puzzle dramatically easier.
Your First Day: Launch Day Setup Steps
If you're starting RADIOSOL on or shortly after the September 30 release date, follow this sequence for a smooth first session.
Optimize Your Settings First
Before exploring, set Display Mode to Fullscreen, Shadow Quality to Medium, and cap your frame rate to your monitor's refresh. These three changes deliver the biggest stability gains on most rigs.
Complete the Opening Sequence
Follow the initial story beats to receive your handheld radio and meet your spider robot companion. Practice movement and interaction controls before leaving the starting area.
Gather Core Survival Resources
Scavenge food, water, and crafting materials from containers and abandoned structures. Keep your inventory light — rare electronic components matter most in the early hours.
Learn Basic Radio Operation
Sweep frequencies slowly. Static gives way to voice as you approach the correct tuning; clear, static-free audio means a broadcast worth investigating.
Set Out Into the Open World
Follow the first distress signal toward Chapter 1's story location, unlocking rest points along the way as fast-travel anchors.
Volumetric fog and god rays are heavily featured in RADIOSOL's sunlit scenes. Medium settings preserve the atmosphere without the GPU cost — only push these to High on capable hardware.
Launch Week Milestones Checklist
Use this checklist to structure your first week with RADIOSOL after the release date.
First Week Goals:
- Finish Chapter 1 — First Signals
- Repair your first three radio towers
- Complete one companion interaction at every rest point
- Collect cipher fragments for Chapter 3 decoding
- Reach the first underground facility entrance
For players aiming beyond week one, the four ending branches reward different playstyles:
| Ending | Playstyle Required | Difficulty to Unlock |
|---|---|---|
| The Loyal Signal | High companion trust, complete bond storyline | Moderate |
| The Solitary Dawn | Self-sufficient, resource-hoarding run | Easiest |
| The Radio Silence | Accept the late-game sacrifice option | Moderate |
| The Broadcast Truth | Thorough exploration, hidden logs found | Hardest |
The Broadcast Truth ending depends on hidden logs scattered across the world — most players miss them on a first run. Plan a second playthrough focused on exploration if the story hooks you.
FAQ
Q: When is the RADIOSOL release date?
RADIOSOL released on September 30, 2026 for PC via Steam. The game was announced in 2025 by developer Triplet Concept and is available now on its Steam store page (AppID 2934330).
Q: Is RADIOSOL available on consoles or only Steam?
At launch, RADIOSOL is a PC release on Steam with full Steam Deck verification, making handheld play a solid option. No console versions have been confirmed as of the release date.
Q: What kind of game is RADIOSOL?
RADIOSOL is a first-person open-world sci-fi adventure combining survival mechanics, radio signal decoding puzzles, and a spider robot companion. Your choices throughout the campaign lead to one of four distinct endings.
Q: Do I need to play with the spider robot companion?
You can largely ignore the companion and still finish the game — that path leads to the Solitary Dawn ending. However, investing in the companion's trust unlocks the Loyal Signal ending and several quality-of-life abilities like remote scanning and harvesting.