- Release Candidate 0.30.5 - Custom Ranges/Arcs, Balance Changes, Ships, & Fixes - 3 October 2026
Release Candidate 0.30.5 - Custom Weapon Ranges & Arcs, Balance Changes, New Ships, & Bug Fixes Cosmoteer release candidate 0.30.5 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 release candidate adds the ability to customize the range, firing arc, and direction of your weapons, adds new ships, makes various quality-of-life improvements, (hopefully) improves balance, and fixes bugs. It also likely solves most of the freezing issues that many players on Linux have been experiencing. (Thanks to all of you who sent in bug reports and logs and helped test the fix!) Thanks for testing! RC1 Patch Notes: New Feature: Custom Weapon Ranges, Arcs, & Directions: Added a new "Set Range/Arc/Direction" tool that lets you customize the maximum range and firing arc of your weapons, or aim…
- Hotfix 0.30.4c Patch Notes - 9 May 2026
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 hotfix.)
- Hotfix 0.30.4b Patch Notes - 8 May 2026
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 currently in communications with the Proton team about these, and they need your Proton log files in order to investigate the issue. Please see this FAQ about how to turn on and find the Proton log file. Please post the log file here or on Discord. (Warning: These files can be extremely large, so you may need to compress it or extract the final 10k lines or so.) In the meantime, some players have reported success by changing the version of Proton used, and if that doesn't work then rolling Cosmoteer back to 0.30.3 (available via the beta branches) should definitely resolve it.
- Hotfix 0.30.4a Patch Notes - 20 April 2026
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 unless you specially check a box to do so.
- Update 0.30.4 - Ironman Mode, Balance Changes, New Ships, & Bug Fixes - 17 April 2026
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 (Overclocked): 'Extended' health reduced (15000->12000) 'Reinforced' health increased (30000->39000) Flak (Overclocked): Reduced shrapnel cloud health (800->400) Reduced shrapnel cloud lifetime (7s->4s) Reasoning: Overclocked Flak were too cost-effective at blocking damage. Ion Beam Emitter: Increased battery capacity (10->16) Reasoning: Overclocked Ion Beams were too difficult to sustain. Thermal Resonance Lance: Reduced turret speed (60->30) Reasoning: Resonance Lance was too effective at staying on target. Disruptor (Overclocked): Reduced drain vs command rooms by 75%. Reasoning: Command rooms could be indefinitely disabled with very few shots. Railgun (Overclocked): Reduced length buff exponent…
- Release Candidate 0.30.4 - Ironman Mode, Balance Changes, New Ships, & Bug Fixes - 11 April 2026
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 release candidate adds "Ironman Mode" to Career, adds new ships, improves balance, and fixes bugs.Thanks for testing!RC1 Patch Notes: Balance: Small Shield (Overclocked): 'Extended' health reduced (15000->12000) 'Reinforced' health increased (30000->39000) Flak (Overclocked): Reduced shrapnel cloud health (800->400) Reduced shrapnel cloud lifetime (7s->4s) Reasoning: Overclocked Flak were too cost-effective at blocking damage. Ion Beam Emitter: Increased battery capacity (10->16) Reasoning: Overclocked Ion Beams were too difficult to sustain. Thermal Resonance Lance: Reduced turret speed (60->30) Reasoning: Resonance Lance was too effective at staying on target. Disruptor (Overclocked): Reduced…
- Hotfix 0.30.3d Patch Notes - 11 February 2026
Bugfix: In single-player, detonating an Explosive Charge while hovering another part would crash the game.
- Hotfix 0.30.3c Patch Notes - 5 February 2026
Crash when overclocked shields receive negative damage. Possible freeze when placing parts that change heat build stats. Explosions that split ships could cause common multiplayer desyncs and inconsistent damage.
- Heretic Red Demo - 14 January 2026
Hey Cosmoteers!My friend has just released a free demo for their game Heretic Red, which is a narrative-driven detective mystery game that's set in a snowy village with murder, blasphemy, and religious tension. I played the demo myself and really enjoyed it, especially the world-building and dialogue. Here's a trailer:I know that's basically nothing like Cosmoteer, but if it sounds like something you might enjoy, then I encourage you to check it out! The demo takes under an hour to play and is of course free. And if you like it, then please wishlist so that you get notified when the full game releases!- Walt
- Hotfix 0.30.3b Patch Notes - 17 December 2025
Bugfix: Mods whose /Actions list used inheritance would usually crash on load.
- Hotfix 0.30.3a Patch Notes - 16 December 2025
Bugfix: Crash when booting the game on a computer that doesn't have a settings file saved yet.
- Update 0.30.3 - Quality-of-Life, Balance, & Bug Fixes - 15 December 2025
Cosmoteer update 0.30.3 is now available! This is a small update that makes quality-of-life improvements, adds new ships, improves balance, and fixes bugs.Enjoy!Patch Notes:Built-In Ships:Added 4 new Fringe combat ships: Hotshot, Scorcher, Smoulderer, and Stoker.Added 11 new Cabal combat ships: Adustio, Antares, Heliogabalus, Helios, Ignis Castus, Ignis Excaecator, Ignis Immanis, Ignis Iustus, Ignis Nitidus, Ignis Primus, and Ignis Recensus.Added 4 new Imperium combat ships: Alicanto, Ashoka, Aspatha, and Mithridates.Added 5 new Great House Io combat ships: Lerna, Sabnock, Sargus, Vapula, and Zent.Misc updates to existing ships.Balance:Point Defense (Non-Overclocked):Increased range from 150 to 200.Point Defense (Overclocked):Reduced rate of fire from 15 to 11.25.Reduced heat generation from 450 to 200.Increased power use from 0.035 to 0.04/shot.Decreased energy generation from 0.131 to…
- Release Candidate 0.30.3 - Quality-of-Life, Balance, & Bug Fixes - 29 November 2025
Cosmoteer release candidate 0.30.3 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 release candidate makes quality-of-life improvements, adds new ships, improves balance, and fixes bugs.Thanks for testing!RC1 Patch Notes:Built-In Ships:Added 4 new Fringe combat ships: Hotshot, Scorcher, Smoulderer, and Stoker.Added 11 new Cabal combat ships: Adustio, Antares, Heliogabalus, Helios, Ignis Castus, Ignis Excaecator, Ignis Immanis, Ignis Iustus, Ignis Nitidus, Ignis Primus, and Ignis Recensus.Added 4 new Imperium combat ships: Alicanto, Ashoka, Aspatha, and Mithridates.Added 5 new Great House Io combat ships: Lerna, Sabnock, Sargus, Vapula, and Zent.Misc updates to existing ships.Balance:Point Defense (Non-Overclocked):Increased range from 150 to 200.Point Defense (Overclocked):Re…
- Hotfix 0.30.2b Patch Notes - 12 November 2025
Fixed overclocked railgun splitting projectiles causing lag/stutter.
- Hotfix 0.30.2a Patch Notes - 6 November 2025
Fixed frequent desyncs during gameplay, especially during ship construction.
- Update 0.30.2 - Quality of Life & Bug Fixes - 5 November 2025
Cosmoteer update 0.30.2 is now available! This update tweaks the new sound effects in response to player feedback (thanks!!), makes quality-of-life improvements, adds new ships, improves balance, and fixes bugs.Enjoy!Patch Notes:Built-In Ships:Added 20 new Great House Io combat ships: Aamon, Amy, Ananke, Andrealphus, Caligaris, Cetus, Charybdis, Clio, Decarabia, Furfur, Ianthe, Janus, Lernean, Lysithea, Murmur, Paimon, Surtr, Vesta, Vestarka, and Vine.Added 1 new Fringe ship: Gehenna.Miscellaneous updates to existing built-in ships.Balance:Overclocked Flak:Shrapnel fields will now repel each other and thus not overlap as much.Shrapnel fields will now be repelled by ships.Reduced shrapnel field damage pool from 1600 to 800.Reduced shrapnel field max bullet damage from 1000 to 800.Small and Large laser bolts now have 50% damage resistance to shrapnel fields.Tripled damage to shrapnel fiel…
- Release Candidate 0.30.2 - Quality-of-Life & Bug Fixes - 18 October 2025
Cosmoteer release candidate 0.30.2 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 is a release candidate tweaks the new sound effects in response to player feedback (thanks!!), makes quality-of-life improvements, adds new ships, improves balance, and fixes bugs.Thanks for testing!RC1 Patch Notes:Built-In Ships:Added 20 new Great House Io combat ships: Aamon, Amy, Ananke, Andrealphus, Caligaris, Cetus, Charybdis, Clio, Decarabia, Furfur, Ianthe, Janus, Lernean, Lysithea, Murmur, Paimon, Surtr, Vesta, Vestarka, and Vine.Added 1 new Fringe ship: Gehenna.Miscellaneous updates to existing built-in ships.Balance:Overclocked Flak:Shrapnel fields will now repel each other and thus not overlap as much.Shrapnel fields will now be repelled by ships.Reduced shrapnel field damage pool fr…
- Hotfix 0.30.1b Patch Notes - 16 September 2025
Modding: Re-added the 'ElementDeliver' common sound effects, because its removal was causing mods to crash. Bugfix: Rare crash when opening the galaxy map with some galaxy seeds.
- Hotfix 0.30.1a Patch Notes - 10 September 2025
Fixed an issue causing incompatibility with some mods.
- Update 0.30.1 - New Sound Effects & More! - 9 September 2025
Cosmoteer update 0.30.1 is now available! This update has new audio effects, new ships, balance tweaks, quality-of-life improvements, and bug fixes.Enjoy!Patch Notes:Built-In Ships:Added 2 new Monolith combat ships: Justicar, Perfect Blue.Added 3 new Cabal ships: Delphinus, Lyra Major, Lyra Minor.Added 2 new Imperium combat ships: Canary, Nero.Added 25 new Great House Io combat ships: Abaddon, Acala, Allocer, Amalthea, Andromalius, Catoblepas, Crocell, Cyllene, Dantalion, Donor, Enyo, Euboea, Gremory, Lei-zi, Masubi, Quzah, Raum, Sobo, Sparagmos, Themisto, Tiresias, Tonatiuh, Tsui, Uta, Zaebos.Miscellaneous updates to existing built-in ships.Balance:Increased Chaingun turret rotation speed from 50 to 100.Increased Ion Beam Prism rotation speed from 20 to 60.Crew can now carry 2 H.E., E.M.P., and T.C.M. missile parts instead of 1.Career:Pirate station missions are now listed as one diffi…
