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Running Steam and games securely (lemm.ee)

submitted 2 weeks ago by oldfart@lemm.ee to c/linux_gaming@lemmy.ml

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Is there a consensus on how to run Steam and games isolated from the main system? I've seen Flatpak mentioned in some Reddit post but I'm not sure how good the separation is. Everything about Flatpak sounds like an early work in progress, but I can be convinced otherwise.

I don't trust Steam or the closed source games at all. Currently I've got a second disk with a separate system for gaming, but I very rarely have the motivation to reboot. I want to game more (and spend less time on social media) but compromising my main OS is out of the question. Stuff in the home directory should be isolated from the games. Ideally no network access too, but Steam will not work in that case.

If someone has seen a ready made guide I'd be happy to read it. Any tips would be nice too.

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[–] julianh@lemm.ee 5 points 2 weeks ago

People are right about flatpak - it will generally keep stuff out of your actual root/home directory. But like you implied, the steam flatpak is unofficial so you may run into issues. With that said, I've used it and know many people who use it without any problems.

And depending on the game, you might be able to run it directly with steam offline, or even straight from the executable without steam open at all.

Of course this isn't airtight, but there are ways to check the permissions granted to flatpak applications. And IMO it works well enough for games. Ofc this depends on how paranoid you are and your reasons for wanting this (fear of a game being a virus, not wanting clutter in home, wanting protection from a bug that would delete data, etc.).