Steam uses a custom markup system, similar to BBCode, to allow users and developers to format text across the platform, including profiles, game descriptions, and community reviews. Core Text Formatting Tags

[code]Fixed-width font[/code] to preserve spacing and use a monospaced font. [url=link]Label[/url] to create clickable hyperlinks . Where to Use Formatting How To: Steam Formatting - Guides

[spoiler]Hidden Text[/spoiler] to protect others from game spoilers.

You can format text by wrapping it in square brackets. Here are the most common tags used on Steam: