Short answer
As of October 11, 2026, no physical edition of Silver Pines has been announced in the sources, and no physical product code appeared in the search results. The publisher’s launch and pre-order announcements mention only digital storefronts.
Storefronts
On PC, the game is sold on Steam and the Epic Games Store. GOG has a wishlist page but no store listing. On PlayStation 5, Xbox, Nintendo Switch and Nintendo Switch 2, the official store pages are digital product pages.
The Deluxe edition
The Deluxe edition contains the game, an artbook and the official soundtrack. On Steam, the artbook and the soundtrack are separate digital add-ons, so the edition is a digital bundle, not a box.
Third-party “physical” pages
Some pages in the search results advertise a physical version. Several of them belong to one group of sites with no named author and no date, so this page does not rely on them. Other retailer pages that look physical sell digital keys for the game.
What the sources do not confirm
The sources do not mention limited or collector editions, so this page cannot say whether one is planned. The answer above is dated, and it may change. Check the publisher’s announcements and the store pages before you buy.