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Cosmic Composer

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App ID 3459990
App Type Game
Developer
Publisher Juhani Viitanen
Supported Systems Windows
Last Changenumber 31490388
Last Record Update 5 October 2025 – 13:12:43 UTC ()
Release Date 2026
🌠 Space 🧩 Puzzle 🧱 Sandbox 🏠 Building 🗺️ Top-Down

Casual puzzle game on a cosmic scale. Build stars, planets and other cosmic objects. Evolve your cosmos using abilities of the stars from stellar winds to supernova.

There is only partial information available about this app as SteamDB is missing the access token.

Additional Information

This game is excluded from Steam Family Sharing because: This game has not yet been released

controller_support full
ReleaseState prerelease
Exclude from family sharing (exfgls) 8 (This game has not yet been released)
Store Release Date 2026
osarch 64
community_hub_visible Yes
Social Media https://discord.gg/3u9thMFTd7
Primary Genre Casual (4)
Store Genres Casual (4)
Store Asset Modification Time 2 October 2025 – 16:35:49 UTC () (1759422949)
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height_pct59.11854061052314
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controllertagwizard Yes
First seen on SteamDB 12 January 2025 – 09:17:13 UTC (), in changelist #26960805

Supported Languages

5 Languages Interface Full Audio Subtitles
English Yes
French Yes
German Yes
Simplified Chinese Yes
Spanish - Spain Yes

Tags

🌠 Space 🧩 Puzzle 🧱 Sandbox 🏠 Building 🗺️ Top-Down 😌 Casual 🚀 Space Sim 🔬 Science 🧊 3D 🧘 Relaxing 🖥️ Simulation 🎨 Colorful 👪 Family Friendly 🚀 Sci-fi 🌫 Atmospheric 💥 Destruction 📊 Resource Management 👤 Singleplayer

Categories

Single-player Family Sharing Steam is learning

Hardware Categories

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

Assets

Load all asset images
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Assets
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timestamp5 October 2025 – 10:14:03 UTC
Trailers
813823 ↴
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timestamp1759423026
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