Hi BulletMagnet, sorry for the inconvenience! Thanks so much for letting us know! It should be fixed now. Please let me know if you have any other issues.
Hi, sorry for necroposting, but I just tried this on Linux, and I have the same issue. After starting the game, it tries to launch on Steam, but because I got it in a bundle and so didn't get a Steam key, I'm unable to play. In case it helps, I installed and launched the game via the Itch app, and I have yet to try standalone. Still, if you need more info, please feel free to ask.