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Radia Island Demo

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App ID 5178720
App Type Demo
Developer
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)
❓ 72.17%
6 reviews
0
In-Demo

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 ()
osarch 64
Social Media https://discord.gg/dTxpMFyV2
https://x.com/RadiaStudio
Primary Genre Simulation (28)
Store Genres Casual (4), Indie (23), Simulation (28), Strategy (2)
Steam Release Date 12 September 2026 – 06:00:22 UTC ()
Store Asset Modification Time 15 September 2026 – 16:31:25 UTC () (1789489885)
library_assets
library_capsuleen
library_heroen
library_hero_bluren
library_logoen
library_headeren
logo_position ↴
pinned_positionCenterCenter
width_pct74.09638520140717
height_pct100
osextended empty string
name_localized
englishRadia Island Demo
schinese光辐岛 Demo
tchinese光輻島 Demo
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 (), in changelist #38337394

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

Single-player Game demo

Accessibility Categories

Custom Volume Controls Playable without Timed Input Playable At Your Own Pace Adjustable Difficulty

Assets

Load all asset images
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header_image
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library_assets_full
library_capsule ↴
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library_hero ↴
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Assets
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page_background_pathapp/5178720
last_modified15 September 2026 – 16:31:36 UTC
timestamp15 September 2026 – 16:31:36 UTC

Trailer 1305144 ↴

trailer_name Radia Island Demo Now Available
trailer_category 1
microtrailer ↴
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video/mp4 5178720/1207359712/a138b059a873831fa096343c122d3e8a0c898ceb/1787944314/microtrailer.mp4
adaptive_trailers ↴
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dash_h264 5178720/1207359712/a138b059a873831fa096343c122d3e8a0c898ceb/1787944314/dash_h264.mpd
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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

Depots

ID Configuration Size DL.
5178721 245.68 MiB 118.86 MiB

Total size on disk is 245.68 MiB and total download size is 118.86 MiB.

 

Branches

Name Description Build ID Time Built Time Updated
public 25532176 25 September 2026 – 15:40:38 UTC 27 September 2026 – 12:00:44 UTC
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