Released Oct 24, 2022
Early Access $12.59 · −30% Very Positive
Cosmoteer: Starship Architect & Commander
By Walternate Realities
Followers
—
Reviews
12,091
Very Positive
Players yesterday
482
at the busiest moment
Owners
500K–1M
estimated
Steam data
Everything Steam lists for Cosmoteer: Starship Architect & Commander · record updated 1 day ago
Overview
App ID799600
Release dateOct 24, 2022
Last change number40185750
Last record update1 day ago
App info
- App type
- Game
- Developer
- Walternate Realities
- Publisher
- Walternate Realities
- Steam profile
- Counts toward game count and achievement totals · checked Nov 1, 2025
- Website
- cosmoteer.net
Platforms
Windows
64-bit
- Steam Deck
- Playable
Features
11
Single-playerMulti-playerOnline PvPSteam CloudCo-opOnline co-opPvPLAN PvPLAN co-opSteam WorkshopFamily Sharing
Patches
Builds
17| Build | Branch | Updated |
|---|---|---|
| 26170927 | 0.30.5 | Oct 23, 2026 |
| 26170927 | public | Oct 23, 2026 |
| 26170927 | unstable | Oct 23, 2026 |
| 23161854 | previous-build | May 9, 2026 |
| 23161854 | 0.30.4 | May 9, 2026 |
| 21875348 | 0.30.3 | Mar 20, 2026 |
| 20774453 | 0.30.2 | Dec 16, 2025 |
| 19992395 | 0.30.1 | Nov 6, 2025 |
| 16072530 | 0.27.2 | Nov 5, 2025 |
| 17700495 | 0.28.2 | Nov 5, 2025 |
| 19817698 | 0.30.0 | Sep 15, 2025 |
| 19677015 | 0.29.0 | Aug 21, 2025 |
| 14922959 | 0.26.2 | Jul 23, 2024 |
| 14723824 | 0.26.1 | Jul 2, 2024 |
| 12955354 | 0.24.3 | Dec 23, 2023 |
| 12586273 | 0.24.1 | Nov 13, 2023 |
| 11436350 | 0.22.1 | Jun 23, 2023 |
Depots
Depots
5| ID | Name | Systems | Size | Download | Manifest |
|---|---|---|---|---|---|
| 228989 | — shared from 228980 | Windows | — | — | — |
| 228990 | — shared from 228980 | Windows | — | — | — |
| 799601 | — | Windows | 1.57 GB | 1.46 GB | 73031032886656299 |
| 799602 | — | Windows | — | — | 1761873588406179038 |
| 799603 | — | Windows | 201.8 MB | 76.1 MB | 3275020840679716060 |
Branches
17| Branch | Build | Updated | Access |
|---|---|---|---|
| public | 26170927 | Oct 23, 2026 | Open |
| 0.30.5 Use this branch to play mods compatible with Cosmoteer version 0.30.5 | 26170927 | Oct 23, 2026 | Open |
| unstable Bleeding-edge updates; possibly very buggy! | 26170927 | Oct 23, 2026 | Open |
| previous-build The previous game build, in case the latest build has any issues. | 23161854 | May 9, 2026 | Open |
| 0.30.4 Use this branch to play mods compatible with Cosmoteer version 0.30.4 | 23161854 | May 9, 2026 | Open |
| 0.30.3 Use this branch to play mods compatible with Cosmoteer version 0.30.3 | 21875348 | Mar 20, 2026 | Open |
| 0.30.2 Update 0.30.3 broke some mods, so use this version to keep playing them. | 20774453 | Dec 16, 2025 | Open |
| 0.30.1 Update 0.30.2 broke some mods, so use this version to keep playing them. | 19992395 | Nov 6, 2025 | Open |
| 0.27.2 Update 0.28.0 broke some mods, so use this version to keep playing them. | 16072530 | Nov 5, 2025 | Open |
| 0.28.2 Update 0.29.0 broke some mods, so use this version to keep playing them. | 17700495 | Nov 5, 2025 | Open |
| 0.30.0 Update 0.30.0 broke some mods, so use this version to keep playing them. | 19817698 | Sep 15, 2025 | Open |
| 0.29.0 Update 0.30.0 broke some mods, so use this version to keep playing them. | 19677015 | Aug 21, 2025 | Open |
| 0.26.2 Update 0.27.0 broke some mods, so use this version to keep playing them. | 14922959 | Jul 23, 2024 | Open |
| 0.26.1 Update 0.26.2 broke some mods, so use this version to keep playing them. | 14723824 | Jul 2, 2024 | Open |
| 0.24.3 Update 0.25.0 broke some mods, so use this version to keep playing them. | 12955354 | Dec 23, 2023 | Open |
| 0.24.1 Update 0.24.2 broke some mods, so use this version to keep playing them. | 12586273 | Nov 13, 2023 | Open |
| 0.22.1 Update 0.23.0 broke some mods, so use this version to keep playing them. | 11436350 | Jun 23, 2023 | Open |
Configuration
Install foldersteamapps/common/Cosmoteer
Launch options
3| Executable | Arguments | Systems | Description |
|---|---|---|---|
| Bin/Cosmoteer.exe | Windows | ||
| Bin/Cosmoteer.exe | --no-mods | Windows | Temporarily Disable Mods |
| Bin/Cosmoteer.exe | --devmode | Windows | Developer Mode |
Cloud saves
Space per player9.31 GB
Filesup to 10,000
Save locations2
| Root | Path | Pattern | Systems |
|---|---|---|---|
| WinSavedGames | Cosmoteer\{64BitSteamID}\Saved Ships | *.ship.png | All |
| WinSavedGames | Cosmoteer\{64BitSteamID}\Saved Games | *.savedgame | All |
Data from public Steam pages, updated daily; 1 day of history. Owner counts are estimates. LaunchRivals is not affiliated with Valve or Steam.