Install the native Linux Borderlands 2 game.Side note: A friend of mine had the exact same issue with Borderlands: The Pre-Sequel on an Arch Linux install. Ultimately I decided to uninstall Boderlands 2 and reinstall it, after which the game installed and launched just fine (with the appropriate tweaks for running it in Proton, of course). The download completed and validated as expected, but after that kept validating over and over. Please describe your issue in as much detail as possible:Īfter realising that the new Borderlands 2 update broke cross-play between Windows and macOS/Linux, I thought I'd try installing the Windows version and run it via Proton instead, so I went into Borderlands 2's properties and enabled 'Force the use of a specific Steam Play compatibility tool', after which a download was triggered. Have you checked for system updates?: Yes.Steam client version (build number or date): Feb 18 2019, at 22:09:18.