[Launcher] Target = D:\Games\Hollow Knight\hollow_knight.exe StartIn = D:\Games\Hollow Knight (e.g., D:\My Games\Hollow Knight ), you must wrap the path in double quotes, but note the special syntax:
If SmartSteamEmu.exe is inside your game folder: [Launcher] Target = D:\Games\Hollow Knight\hollow_knight
If you are a gamer who uses custom Steam emulators for preserving or testing offline game backups, you have likely encountered the SmartSteamEmu (SSE) tool. While powerful and lightweight, it is notoriously finicky regarding file paths. D:\My Games\Hollow Knight )
Look for the section labeled [Launcher] . It will contain two lines: [Launcher] Target = D:\Games\Hollow Knight\hollow_knight