Admit it, you've wanted at least one type of resource added to the game at one point. However, it's not really difficult to add resources of your design into the game. The basic resources of the game include: Liquid fuel, Oxidizer, Solid fuel, Monopropellant, Xenon gas, Electric charge, and the Ablator. The more complex resources are: Ore, Intake air, and EVA propellant. A quick look in the file named "ResourcesGeneric.cfg" will show all of these. Go ahead and open it up. ...Oh, you're too cool