But steam would require you to go online to install your backups. Unless you have DRM free install files, you’re vulnerable. That includes physical media that has DRM

But what if they remove a game you’ve purchased? You’re in the same situation as with a PlayStation.

As long as you’re not able do download DRM free install files, you don’t own the software you purchased.

Steam has “promised” to make games available in case their service closes, but we’re living on a prayer