Speedrun

Speeding up the campaign by setting a high game speed will make the game more difficult to manage for the player.

This can be done by pressing  and the game will open the console. Typing in the command, the speed will be doubled. Press  to close the console.

Typing in  will reset to the default speed. The player can use whatever number (s)he likes, but it is advised to not overdo it.

Conversely, typing in  will half game speed.

The player can use also the arrow up and down to retype the already used commands, instead of retyping them all the time.

Please note that, while the setgamespeed function can be very useful and is generally safe to use, it is not fully supported. It is possible for certain (timed) scripted events or objectives to not respond correctly to the changed game speed. This is unlikely to be much of an issue in the normal sandbox modes but might sometimes alter the intended difficulty of the more heavily scripted campaign modes.

After all, it is only a console command (presumably intended for testing purposes) and not a full feature.