I would guess the number of indie games that are available on physical media tends to be near zero. And any updates would have to come via the net anyways. Even physical console games only save you a little download, as the patches come over the net.
And wait a minute. You upgraded to El Capitan? That is mac, is it not? The internet tells me, that el capitan stopped getting security upgrades in 2018. You "upgraded" to a 5 year out of date OS? Seriously?