I don’t think there is much you can do if you get an unarc error but I usually point people to this guide for getting repacks to work on lutris

https://github.com/elmhadji/instal_repacks_in_Linux

Too bad, as a Linux user their repacks always seemed to work better for me then FitGirls. OTOH I have always hated all the third party link providers used, that were constantly trying to trick users into downloading malware.

Best of luck to them in the future.

There are several inaccuracies in both of your comments. Please try to avoid using common networking terms incorrectly—e.g., a VPN is more than ‘a fully encrypted link between two private points,’ and Tor is not a VPN. Misstating these concepts can spread confusion, so if you’re unsure, please research before commenting.

You know what rings warning bells for me? When someone calls Tor a VPN.