Radia Island Demo
| App ID | 5178720 |
| App Type | Demo |
| Developer | Radia Studio |
| Publisher | Radia Studio |
| Supported Systems | Windows |
| Technologies | Unity Engine |
| Last Changenumber | 39242797 |
| Last Record Update | 27 September 2026 – 12:00:47 UTC ( |
| Release Date | 12 September 2026 – 06:00:22 UTC ( |
| Parent App | Radia Island (4971460) |
Radia Island is a civilization-building survival game. Lead your people to a new land, establish your first town, gather resources, research technologies, advance into the industrial age, and ultimately complete the space program.
Additional Information
This demo is excluded from Steam Family Sharing because: This content type cannot be shared
| Developer | Radia Studio | |||||||||||||||||||
| ReleaseState | released | |||||||||||||||||||
| Publisher | Radia Studio | |||||||||||||||||||
| Exclude from family sharing (exfgls) | 6 (This content type cannot be shared) | |||||||||||||||||||
| Store Release Date | 12 September 2026 – 06:00:22 UTC ( |
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| osarch | 64 | |||||||||||||||||||
| Social Media | https://discord.gg/dTxpMFyV2 https://x.com/RadiaStudio |
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| Primary Genre | Simulation (28) | |||||||||||||||||||
| Store Genres | Casual (4), Indie (23), Simulation (28), Strategy (2) | |||||||||||||||||||
| Steam Release Date | 12 September 2026 – 06:00:22 UTC ( |
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| Store Asset Modification Time | 15 September 2026 – 16:31:25 UTC ( |
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| library_assets |
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| osextended | empty string | |||||||||||||||||||
| name_localized |
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| Is free on the store? | Yes | |||||||||||||||||||
| Detected Technologies | Unity Engine, DirectStorage SDK, UnityBurst SDK, UnityIL2CPP SDK | |||||||||||||||||||
| controllertagwizard | Yes | |||||||||||||||||||
| First seen on SteamDB | 26 August 2026 – 05:26:14 UTC ( |
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Supported Languages
| 10 Languages | Interface | Full Audio | Subtitles |
|---|---|---|---|
| English | Yes | ||
| Simplified Chinese | Yes | ||
| French | Yes | ||
| German | Yes | ||
| Spanish - Spain | Yes | ||
| Russian | Yes | ||
| Japanese | Yes | ||
| Traditional Chinese | Yes | ||
| Portuguese - Brazil | Yes | ||
| Korean | Yes |
Categories
Accessibility Categories
Assets
Load all asset images
| trailer_name | Radia Island Demo Now Available |
| trailer_category | 1 |
| microtrailer ↴ | |
| video/webm | 5178720/1207359712/a138b059a873831fa096343c122d3e8a0c898ceb/1787944314/microtrailer.webm |
| video/mp4 | 5178720/1207359712/a138b059a873831fa096343c122d3e8a0c898ceb/1787944314/microtrailer.mp4 |
| adaptive_trailers ↴ | |
| dash_av1 | 5178720/1207359712/a138b059a873831fa096343c122d3e8a0c898ceb/1787944314/dash_av1.mpd |
| dash_h264 | 5178720/1207359712/a138b059a873831fa096343c122d3e8a0c898ceb/1787944314/dash_h264.mpd |
| hls_h264 | 5178720/1207359712/a138b059a873831fa096343c122d3e8a0c898ceb/1787944314/hls_264_master.m3u8 |
| screenshot_medium | 257410131/cb3c20ac5b3bc35e5823868742f9d61b4fdfb3db/movie_600x337.jpg |
| screenshot_full | 257410131/cb3c20ac5b3bc35e5823868742f9d61b4fdfb3db/movie_full.jpg |
| all_ages | true |
| is_highlight | true |
| timestamp | 12 September 2026 – 06:00:23 UTC |
Configuration
| Key | Value |
|---|---|
| installdir | Radia Island Demo |
Launch Options
0. Unnamed launch option
| Executable | Radia Island.exe |
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| Launch Type | Unspecified | |
| Operating System | windows | |
| CPU Architecture | 64-bit only |