Why are 'you' (in the general sense, you're far from the only one doing this) implying this is an incomplete information game? Steam has absolutely excellent tools for content discovery, and the vast majority of people use them actively. And due to the effectively perpetual nature not only of Steam, but also even of console stores now a days - there really is no 'survivorship.' There are games released [literally] 30 years ago now being discovered by new users, and making new sales.

And that isn't just some sort of academic point I'm making. Seemingly the overwhelming majority of indie success stories are achieving long-tail success now a days. Increasing numbers of indie games released like a decade ago are having better play figures today than they did at launch. This includes both the extremely well known titles like Terraria [1], as well as those that are still relatively unknown like Kenshi [2].

[1] - https://steamcharts.com/app/105600

[2] - https://steamcharts.com/app/233860