RAGE
From PCGamingWiki, the wiki about fixing PC games
Enabling Developer Console
You can enable the developer console for RAGE by right clicking the game in your list of Steam games, then clicking Properties, then Set Launch Options. In there, enter "+set com_allowconsole 1" without the quotes. Now you can access the developer console in game via the ~ key.
Useful Developer Console Commands
g_fov X - Sets the desired field of view, X being the number of degrees.