Using this Trainer:

Launch the trainer first, then launch the Game and then Press F1 at the Main Menu.

Listen for "Activated".

Press desired option key

Options in Promo:

Numpad 2: Unlimited Steam

Options:

Numpad 1: Mega Health

Numpad 2: Unlimited Steam

Numpad 3: 99 Skill Points

Notes:

Numpad 1: Mega Health - while in combat, make sure to select a unit you can control and note the health.  Toggle this on and then when you move the unit or select more of your units, the health of that unit will be 999. While this is on, when you click on your own units, effectively you reset their health to 999.

Numpad 2: Unlimited Steam - while in combat, make sure to select the main character that uses steam.  Toggle this on then, and when you select this character, effectively you are giving it the max steam.

Numpad 3: 99 Skill Points - while in the part of the game where you click on the storyboard and etc, and you can click the HAND ICON that says SKILLS, toggle this on and then click that HAND ICON and you will see that you have 99 skill points.