How to Enable the Console in DOTA 2
The console is not enabled by default. In order to enable it, follow the steps below:
- Right-click the game on your Steam Library
- Click “Properties“
- Click “Set Launch Options“
- Type in “-console” or “+con_enable 1” without the quotes

-console versus +con_enable1
There is no difference as to the effect of inputting either -console or +con_enable. The default hotkey for the console command is the backslash sign “\“; you can always rebind this key in the in-game settings. The console line user interface hides if the hotkey is pressed again. However, if you want to totally remove the console from appearing in-game, just remove the -console or +console enable 1 line from the launch options following the procedure laid down above.