From Team Fortress Wiki

“

— The Medic practicing his handwriting Papers, please. ”

The fonts in Team Fortress 2 are used both in and out of the game for visual branding and promotional imagery.

Fonts

User-interface

User interface fonts are packaged with the game and stored in /team fortress 2/tf/resource .

Font Name Image Description Example TF2 A skinny, all upper-case font. This font also makes an appearance in-game, as the font used for the Critical Hit!!! text.

Available for free on DaFont. Download TF2 Secondary A skinny, upper-and-lower-case font.

Available for free on DaFont. Download TF2 Build A thick, all upper-case font.

Available for free on DaFont. Download TF2 Professor A rough, chalk-like font used for text MOTDs.

Available for free on DaFont. Download

In-game

In-game fonts are used on textures in Team Fortress 2.

External branding

Several fonts are used for marketing and advertisements including the update pages featured on the TF2 Official Blog.

Classic

These are the fonts used in Team Fortress games before Team Fortress 2.