Contact
One person reads all of it.
There is no support queue and no press office. Mail goes to the developer, and answers usually come back within a day.
What to send where
Press and creators
Review builds, creator keys, interviews, fact-checking. Say who you are and where you publish and a key comes back. Assets are already waiting in the press kit: logos, key art, full-resolution screenshots, the trailer and a fact sheet, all free to use and free to monetise.
Bugs and feedback on the game
The fastest route is the feedback button inside the game, in the pause menu. It sends the report with the run attached, so the bug can be reproduced. Every report gets read and triaged, and most balance changes start there.
Business
Publishing, porting, localisation, festivals, bundles, storefronts. It has its own address, so it will not get buried under bug reports.
Just want to talk about the game
The Steam page has a community hub, the itch page has comments, and both get read. If you would rather send a long email about deck archetypes, that is genuinely welcome.