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Summer Islands Demo

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App ID 1639350
App Type Demo
Developer
Publisher Marttalin Games
Supported Systems Windows macOS Linux
Last Changenumber 34728434
Last Record Update 29 March 2026 – 19:00:06 UTC ()
Release Date 13 June 2021 – 09:19:04 UTC ()
Parent App Summer Islands (731650)
0
In-Demo
+7

Additional Information

This demo is excluded from Steam Family Sharing because: This content type cannot be shared

Developer Marttalin Games
controller_support full
DemoOfAppID Summer Islands (731650)
ReleaseState released
Publisher Marttalin Games
Exclude from family sharing (exfgls) 6 (This content type cannot be shared)
Store Release Date 13 June 2021 – 09:19:04 UTC ()
osarch 64
Primary Genre Unknown Genre (0)
Steam Release Date 13 June 2021 – 09:19:04 UTC ()
Store Asset Modification Time 9 June 2024 – 19:08:32 UTC () (1717960112)
library_assets
library_capsuleen
library_heroen
library_logoen
logo_position ↴
pinned_positionCenterCenter
width_pct100
height_pct84.04255393158451
osextended macos64
Is free on the store? Yes
Detected Technologies CRIWARE SDK, Greenworks SDK, NWJS SDK, NodeJS SDK
controllertagwizard Yes
First seen on SteamDB 15 May 2021 – 15:34:02 UTC (), in changelist #11494712

Supported Languages

15 Languages Interface Full Audio Subtitles
English Yes Yes
German Yes Yes
Spanish - Spain Yes Yes
French Yes
Italian Yes
Arabic Yes
Portuguese - Brazil Yes
Traditional Chinese Yes
Simplified Chinese Yes
Japanese Yes
Korean Yes
Polish Yes
Russian Yes
Turkish Yes
Ukrainian Yes

Categories

Single-player Multi-player PvP Online PvP LAN PvP Co-op Online Co-op LAN Co-op Steam Achievements Steam Workshop Includes level editor Steam Cloud

Hardware Categories

Full Controller Support DualShock Controllers (USB Only) DualShock Controllers DualSense Controllers (USB Only) DualSense Controllers

Assets

Load all asset images
clienticon 520fd07619c99dde9a1a6c20dd3705404652078b
clienttga 0cc019b0499215aee68b5c787204bddb1f56e282
icon 957b947dd548c407e7fc257da0b88b9ca1840b3e
clienticns 98a9012da55a59a39448dcfc765a77baee5621d9
LinuxClientIcon 393029d281c562427793dc23fc01400ef155a613
small_capsule
englishcapsule_231x87.jpg
header_image
englishheader.jpg
library_assets_full
library_capsule ↴
image/englishlibrary_600x900.jpg
image2x/englishlibrary_600x900_2x.jpg
library_hero ↴
image/englishlibrary_hero.jpg
library_logo ↴
logo_position/pinned_positionCenterCenter
logo_position/width_pct100
logo_position/height_pct84.04255393158451
image/englishlogo.png
image2x/englishlogo_2x.png
Assets
main_capsulecapsule_616x353.jpg
small_capsulecapsule_231x87.jpg
headerheader.jpg
page_backgroundpage_bg_generated_v6b.jpg
library_capsulelibrary_600x900.jpg
library_capsule_2xlibrary_600x900_2x.jpg
library_herolibrary_hero.jpg
community_icon957b947dd548c407e7fc257da0b88b9ca1840b3e.jpg
page_background_pathapp/1639350
raw_page_backgroundpage_bg_raw.jpg
timestamp25 January 2025 – 14:43:47 UTC

Configuration

Key Value
installdir Summer Islands Demo

Launch Options

0. Unnamed launch option
Executable windows-x64\SummerIslands.exe
Launch Type Launch (Default)
Operating System windows
CPU Architecture 64-bit only
1. Unnamed launch option
Executable mac-x64\SummerIslands.app
Launch Type Launch (Default)
Operating System macos
2. Unnamed launch option
Executable linux-x64\SummerIslands
Launch Type Launch (Default)
Operating System linux
CPU Architecture 64-bit only
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