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Cosmoteer: Starship Architect & Commander
Design and simulate the starships of your dreams! Command your ship or fleet in epic battles and manage your crew while exploring a dangerous galaxy. Play alone or with friends, test your ships in online PvP, and let your imagination reach for the stars!
What players say
Steam review score and the most-helpful voices, which may include critical ones. Data as of 2026-05-20.
What reviewers agree on
82 of the 102 reviews raise this.
“I love the endless depth of creating the perfect ship; whether it be a single giant monster of a ship that you do everything out of, or creating purpose built ships for each role like fast fighters, mining, missile…”
10 of the 102 reviews raise this.
“Good ship building game. Been playing a bit from the first demo. A solid 9/10 overall. 1 point less, because of a bit poor optimization (Sure I got 3 huge end game ships), but it lags really bad at these points. It…”
“One of the only complex base building games with a campaign that is actually a good difficulty”
“Amazing. there is a learning curve, but onec you get the hang of it, it is so much fun”
7 of the 102 reviews raise this.
“Very fun game, love the management part of it, and a mod I recommend for everyone is the Star Wars mod.”
“Great game! lots of customisability and so many different ways to play!”
“Space chip go pew, enemy go boom. Fun game in terms of building, great mod selection, but too many particles or ships may lag your game at higher time rates.”
6 of the 102 reviews raise this.
“I love the endless depth of creating the perfect ship; whether it be a single giant monster of a ship that you do everything out of, or creating purpose built ships for each role like fast fighters, mining, missile…”
“I really love this game it allows creative thinking and for fun playstyles. I've been with the game since it has came out onto steam but have know about before then this game is really really awesome and the community…”
“10/10. Game is stable with multiplayer and i am hyped about all the future updates”
4 of the 102 reviews raise this.
“Very good for people with creativity, let your imagination free into that spaceship. Very good that it is also multiplayer and get to progress through the game with your friends as well.”
“10/10. Game is stable with multiplayer and i am hyped about all the future updates”
“Some of the greatest bang for buck in a game on steam. Super fun as is, considering it is early access by a indie dev. cannot wait for the new content on the roadmap. Super underrated, alone or with friends. Considering…”
13 of the 102 reviews raise this · 9 of them still recommend the game.
“I really, REALLY want this game to succeed, but it's taking absolutely forever for it to get to a point where it's worth spending more time into. Do not get me wrong, I absolutely understand the pressure of a solo dev,…”
“I can not recommend this game currently due to one single thing. The mechanic in which fire spreads in your ship in this game. At some point your ship will get hit by a weapon or a part of your ship gets hit and a fire…”
“While the gameplay is interesting, it is shallow unless you are heavily creative. What do I mean? Well, there doesn't seem to be a goal in the game; you can unlock all the blueprints just by farming in the starting…”
12 of the 102 reviews raise this · 10 of them still recommend the game.
“I really, REALLY want this game to succeed, but it's taking absolutely forever for it to get to a point where it's worth spending more time into. Do not get me wrong, I absolutely understand the pressure of a solo dev,…”
“I love the endless depth of creating the perfect ship; whether it be a single giant monster of a ship that you do everything out of, or creating purpose built ships for each role like fast fighters, mining, missile…”
“Very good game, definitely waiting for more content.”
7 of the 102 reviews raise this · 6 of them still recommend the game.
“this game is very fun, but so poorly made. multiplayer is tedious with multiple minute loading times and the often game resync that takes 5 minutes at least. for game that is essentially floating jpeg images. it…”
“Good ship building game. Been playing a bit from the first demo. A solid 9/10 overall. 1 point less, because of a bit poor optimization (Sure I got 3 huge end game ships), but it lags really bad at these points. It…”
“Game is pretty good, fun to build ships and watch them being destroyed, the only problem is that it runs so porly on linux its unplayable, dont buy if you use it”
3 of the 102 reviews raise this · 2 of them still recommend the game.
“I really, REALLY want this game to succeed, but it's taking absolutely forever for it to get to a point where it's worth spending more time into. Do not get me wrong, I absolutely understand the pressure of a solo dev,…”
“This game is amazing. its one of those games where you'll say "I'll play for 30 minutes" and you end up playing for like 5 hours. The idea of building your own ship is great and the UI is done very well. However the…”
“I think this might be a "must have' in it's niche. I love all that it's trying to do can I can't wait for more updates. Development is slow but mods help a lot.”
3 of the 102 reviews raise this · 2 of them still recommend the game.
“I can not recommend this game currently due to one single thing. The mechanic in which fire spreads in your ship in this game. At some point your ship will get hit by a weapon or a part of your ship gets hit and a fire…”
“Loved the game, one of the few games that got me to love the designing and building type of games, sadly with the updates and such I no longer been able to run or even open the game without errors popping up every…”
“A pretty good space game that I have been play since long before it hit steam. I am not really sure about some of these newer features and I still wish for a lot of reasons that you could still have crew walking on…”
Counted across 102 English reviews, sampled to match this game's 95.0% positive rating · as of 2026-05-20
“This Game is extremely fun if you enjoy ship building but I have a few gripes, I've owned the game since shortly after release and come back to it periodically to check on it Pros: Fun ship Building: It's complex enough and requires as much thought as you want to put into it,…”
— a player, Steam review · 55 hrs played“[h3] Review for the game as of February 11th 2026 [/h3] [h3] The Good [/h3] - The ship building and progression experience (from basic weapons and armor to advanced thermal systems and shields) - Good variety of weaponry and their respective logistics to try out, for the first…”
— a player, Steam review · 55 hrs played“I enjoy the ship building. It's simplistic, but polished. But the campaign is empty and dull. I think this is a lesson all of these voxel vehicle games need to learn. The building part can't exist in a bubble. You need an engaging campaign or sandbox... not as a second…”
— a player, Steam review · 79 hrs playedPlayer activity
Monthly average concurrent players. Live count fetched 2026-07-11 12:59 UTC · history via SteamCharts.
Price tracking
US-region pricing (USD), sampled twice daily by our own tracker since 2026-07-11. Steam prices vary by region — always confirm your local price on Steam.
Regional prices at last sample, in local currency — Steam sets each region's price independently.
Cheapest → most expensive, converted to USD at ECB reference rates (2026-07-24). Relative comparison only.
Latest official news
Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.
Hotfix 0.30.4c Patch Notes
Bugfix: When running in developer mode, mods that add new ship classes would crash the game during loading with a "cannot be used in the demo" error. (This bug was introduced in yesterday's 0.30.4b ho
Hotfix 0.30.4b Patch Notes
Possible fix for rare, random crashes during gameplay. Attention Linux Players: We're aware that many of you are experiencing random and often frequent freezes/crashes since the 0.30.4 update. We're c
Hotfix 0.30.4a Patch Notes
Bugfix: The game would sometimes load forever while jumping to a new star system. When updating an existing Steam Workshop item, the name, description, and preview image will no longer be updated unle
Update 0.30.4 - Ironman Mode, Balance Changes, New Ships, & Bug Fixes
Cosmoteer update 0.30.4 is now available! This is a small update that adds "Ironman Mode" to Career, adds new ships, improves balance, and fixes bugs.Enjoy!Patch Notes: Balance: Small Shield (Overcloc
Release Candidate 0.30.4 - Ironman Mode, Balance Changes, New Ships, & Bug Fixes
Cosmoteer release candidate 0.30.4 is now available for testing! (To play this release candidate, you must opt in to test it. Please see this post for info on how to test release candidates.)This rele
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Screenshots
Official Steam store screenshots — click any shot to enlarge.
Facts & details
From the Steam store record, snapshot 2026-05-20.
| Genres | Simulation, Strategy, Early Access |
| Player tags | Sci-fi · Singleplayer · 2D · Indie · Space · Building · Strategy · Exploration · Space Sim · Difficult · Survival · Multiplayer (SteamSpy community voting) |
| Features | Single-player · Multi-player · PvP · Online PvP · LAN PvP · Co-op · Online Co-op · LAN Co-op |
| Languages | English, French, German, Portuguese - Brazil, Russian, Simplified Chinese, Spanish - Latin America, Spanish - Spain, Japanese |
| Estimated owners | 500,000 – 1,000,000 (SteamSpy) |
| Official site | https://cosmoteer.net/ |
Minimum system requirements (PC)
Minimum: Requires a 64-bit processor and operating system OS: 64-bit Microsoft Windows 10, 11, or newer Processor: Dual-core Intel 2.0 GHz (or AMD equivalent) Memory: 4 GB RAM Graphics: 1GB DirectX 10 Graphics Card or better Storage: 2 GB available space Sound Card: DirectX compatible sound card