This article explains how to see a game you've hidden on Steam. Instructions work on both the Steam website and the desktop client.

Steam offers several ways to manage and organize your game library, including the option to hide games. When a game is hidden, it does not appear in your library. Hiding a game technically places it in a special game collection that is hidden by default. The hidden collection does not appear with your other collections, so the only way to access it is through the view menu.

Here's how to make games visible again in Steam:

Open Steam and click View.