Thanks for your report.
I investigated through Virustotal and neither the Windows nor the Linux packages give signs of infections.
Here are the reports: Windows: https://www.virustotal.com/gui/file/65c41a4ca768f7e1b6ebdb22066f75d2d8e5baf7357d716154d67f259670235a
Linux: https://www.virustotal.com/gui/file/9fee501c92a37db9e582742e2dfddf905eb4d1a748b23bbc7e9c2750d2b9ade4
If the issue persists, you could try downloading the Steam version at https://store.steampowered.com/app/3244210/Chonkers/