For purposes of backup I don't see that large of a difference between a single installer executable and a zipped folder that you'd get after installing a non DRMed game from Steam.
GOG has allowed third party backup software like https://github.com/Sude-/lgogdownloader to exist. I have a full offline mirror of my GOG library that I update monthly that will never happen with my Steam library.
The non-DRMed steam game will stop working after a while if you haven't logged into steam after a very long time. If steam ever went under, your locally installed single player games that work offline will stop working. Ask me how I know.
I've taken to getting a cracked copy of every steam game in my library so that steam can't screw me over again in the future.
mariusor|2 months ago
unsnap_biceps|2 months ago
autoexec|2 months ago
I've taken to getting a cracked copy of every steam game in my library so that steam can't screw me over again in the future.