Team Fortress 2 Minimum System Requirements CPU: 1.2 GHz Processor RAM: 256 MB Graphics Card: DirectX 7 capable graphics card Windows 2000/XP/ME/98 Mouse Keyboard Internet Connection CD or DVD rom drive
I would think Intel graphics would even be dx 7 capable, but to have a better idea:
http://cyri.systemrequirementslab.com/CYRI/intro.aspx - go here and type in Team Fortress 2 and click the "Can You Run It" button to make sure.
You could try, but even on it's lowest settings in DX8.1, which is the minimum d3d mode you can play in on most servers, you would get very low frame rates.
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