Black Cat Book Club includes a desktop companion mode that lets you shrink the library window, resize it, zoom, and pin it on top of other apps. The mode requires Steam to keep running and the game to remain open; the cat keeps reading while you work or study in other windows.

What the desktop companion does

Desktop companion mode shrinks the library window into a smaller footprint, lets you resize and zoom it to taste, and pins it on top of other applications. The cat keeps reading and earning Focus while you work in other windows, which is the most distinctive part of the launch pitch compared with a standard cozy idle on Steam.

Requirements

Steam must be running and the game must remain open in the foreground or pinned on top. The desktop companion mode is one of the tags on the Steam store page and is fully part of the single-player experience; no extra subscription is required.

Related Pages

Cross-reference the launch pages that match each link target.

What is Black Cat Book Club on SteamIdentity, developer, and disambiguation.Black Cat Book Club gameplay loopIdle reading loop and Focus economy.Black Cat Book Club customisationFur patterns, eye colours, accessories, decorations.

Sources

All facts are verified against the sources listed here.

Black Cat Book Club on Steam (AppID 3972410)`official/store` - checked `2026-09-25` - Desktop Companion tag, window behaviour.
What Is Black Cat Book Club on Steam? An OverviewCanonical overview for Black Cat Book Club on Steam: developer, release date, gameplay, demo contents, languages, and disambiguation.How Black Cat Book Club Plays: The Idle Reading LoopGuide to the Black Cat Book Club gameplay loop: idle reading, tome unlocks, Focus economy, and the cat's autonomy between sessions.Black Cat Book Club Customisation: Fur, Eyes, Accessories, DecorationsGuide to Black Cat Book Club customisation: fur patterns, eye colours, accessories, magical artifacts, and library decorations.