Activating this trainer:
Press F1 at main menu.
Listen for 'Trainer Activated'.
Press desired hotkey. All hotkeys can be changed on the trainer.
NumPad1: Freeze Health
NumPad2: Freeze Stamina
NumPad3: Freeze Warm
NumPad4: Freeze Hunger
NumPad5: No Building Costs
NumPad6: Unlimited Items
NumPad7: Infinite Item Durability
NumPad8: Unlimited Skill Points
No Building Costs: While active you can build/upgrade everything for free. You also don't need to have the required materials.
Unlimited Items: While active items will not removed on use.
Infinite Item Durability: While active your items have unlimited durability. Takes effect as soon as the item is about to lose durability.
Unlimited Skill Points: While active click on your tent and you will have unlimited skill points. You may need to click on a click before the skill point number changes.