I PS1 classics included in the catalog today PlayStation Plus Premium can also be purchased separately by those who have not subscribed, so you can add them to your library without having to be connected to the service.
The question has not yet been codified as a standard rule, therefore there is always doubt about the presence or absence of individual classic games even as products that can be purchased on the PlayStation Store. As for the most recent cases, however, the option is confirmed, given that each of the four classic games included in the catalog today can be purchased separately.
In particular, you can see below the links with the prices for the purchase and direct download of the individual titles:
In this way, access to PS1 backwards compatibility games is allowed to everyone, regardless of whether they have a subscription or not. For the rest, we have seen the new PlayStation Plus Extra and Premium PS5 and PS4 games of February 2023 announced a few days ago and available from today, among which the presence of Horizon Forbidden West stands out in particular.
