How to add external games to your Steam library

Steam has most PC games, but it doesn't have them all. You'll need to know how to add external games to your Steam library to have your collection in one spot.

How to Download and Install STEAM Games on External Hard Drive?

Steam Community :: Guide :: How To Add non-VR Steam Games To SteamVR Library (For SteamVR 1.X.X)

Steam Not Recognizing Installed Game: How to Fix It Quickly

BoilR - Automatically add (almost) all your third-party games to your Steam library (including art) : r/Steam

An error occured while installing (disk write error) · Issue #918 · flathub/com.valvesoftware.Steam · GitHub

How to move Steam games to another drive - Android Authority

Solved) Games Missing from Steam Library

Steam's new storage manager will show you where your game's gigabytes are

Steam Community :: Guide :: Adding a Non-Steam Game to Your Library