

About the Game
Design awesome starships using intuitive ship creation tools that are easy to learn but hard to master. Fully customize your ship's shape and floor plan, choosing where to place individual modules including weapons, engines, hallways, and crew's quarters. Your ship's design is key to its survival, and every decision you make will impact its performance in battle. Easily share your designs with others through the Steam Workshop, Forums, and Discord.
A ship's crew is its lifeblood. Numbering from half-a-dozen to a thousand or more individually-simulated people, your crew will pilot your ships, operate their weapons, and carry munitions. How efficiently they operate determines how well your ships will perform in combat. Your crew are autonomous but you can optionally customize their behavior with specific roles and job priorities.
Command your ship or fleet in real-time tactical battles. Combat is physics-driven, explosive, and immensely satisfying. Each module can be individually targeted and destroyed, and whole ships can even break apart into multiple pieces. Target an enemy's weapons to eliminate its offensive capability, destroy its shields to lower its defenses, or go for the kill by taking out its reactor.
Become the most famous "Cosmoteer'' in the universe by battling A.I. ships, taking on contracts for factions, earning loot, and upgrading your own ship while exploring a procedurally-generated galaxy, alone or in online co-op with friends. Then test your ships design and command skills online against other players in multiple PvP battle modes. Or let your imagination fly free in the Creative Mode where you can build whatever you want with unlimited resources.
Still want more? A powerful modding framework and Steam Workshop will keep Cosmoteer constantly feeling fresh with new player-created weapons, modules, and other enhancements.
Cosmoteer has a friendly and growing community on Discord. Join 20k+ fellow Cosmoteers today!
Screenshots
11 imagesVersion Information
Update RequiredLatest on Steam
Build 21216125
Released Dec 17, 2025 (3 months ago)
Current Release
v0.30.1
Uploaded Dec 4, 2025 (3 months ago)
A newer version is available but not yet uploaded
Help keep this updated
System Requirements
How to Install
Cosmoteer.exe to playTroubleshooting tips
• Run Redist/_CommonRedist installers if game won't start
• Add folder to Windows Defender exclusions
• Run as administrator
Download
Direct link available
1.8 GB
0.30.1b
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Download Cosmoteer: Starship Architect & Commander for PC with a direct link or via torrent. Get the full version of Cosmoteer: Starship Architect & Commander for free. Cosmoteer: Starship Architect & Commander is a Simulation released by Walternate Realities.
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Cosmoteer: Starship Architect & Commander
1.8 GB










