"There is a skill tree," he continued. "There are two basic character development systems. First of all you're getting XP and you can use that XP to gain new perks. So that's the big one. One of the perks that you saw being used [in the demo] is the Precision Shot where you slow down time and that allows you to [aim] the arrows a little more precisely. Without that it's actually really hard to hit certain weak spots. [The character in the demo] is already an advanced character about level 12, I think.
"But there's also basically a secondary way of upgrading your character, and that is through the harvesting and crafting system. By going into nature and defeating bigger and stronger robos you'll get better armour-plating, better weaponry and slowly but surely you'll develop your character in a more naturalistic way."