Cobalt Core Patch Notes — July 29, 2025
Aggregated from Steam, cross-tracked with Battle.net coverage on GamePatchNote.
Content
daily artifacts you’ve seen are now listed at the bottom of the codex
added Polish and Ukrainian glyphs to our font to support fan translations
A whole bunch of bugfixes, listed below
quietly added a Mac version (let us know in the discord if you try it!)
Bugfixes
you can no longer start the rail cannon fight lodged inside the wall
Rebound Reagent can no longer proc multiple times in a single fight if you save+quit+reload
Dillian on enemy-shufflin' dailies can no longer shuffle his extend action to BEFORE he attacks, which let him shoot you in ways you wouldn't see coming
Combustion Engine doesn't render its actions weird when you have hermes boots
the status Engine Lock is now correctly labeled as “affected by Timestop” while you have Timestop
the Janitorbot and the Rail Cannon now obey RNG seeding properly and have consistent starting positions
you can now peek your draw/discard/exhaust pile during another UI (think Admin Deploy B or EXE cards)
choosing a card from your hand (Admin Deploy B) now shows the cards in the same order they are in your hand
Second Opinions now draws cards in the order they are in your draw pile - if your Jupiter’s Moons is on top of the draw pile, it will be drawn first - might matter if your hand is almost full
fixed Boss Advantage / Draft Pick daily run modifier timing issue
fixed upgrade arrow color if Only B Upgrades daily run modifier is up
the game now attempts to view non-English leaderboard names in their appropriate fonts if possible, and falls back to replacing unknown characters with `?` (they used to just be blank)
long leaderboard names now get an ellipsis
fixed daily run modifiers not being saved if the game is closed via the X button right after starting a run, but before getting to the first fight
fixed card tooltips appearing for a single frame when they're disabled while playing on a controller
some optimizations related to artifacts
some miniscule RNG changes (RNG no longer called if choosing 1 out of 1 items)