I want to know about leveling, but for this i have to ask a lot of other questions. First off, and maybe most important, will there be a class system, and if so, how will it work? If there are classes, my personal favorite idea would be for it to simply give a "level" bonus in that area (assuming that there are level-esque things), and not determine your entire gameplay. For example, say there was a class, engineer. It would give you bonus exp, or levels in repair, or construction, and may give you some of the skills in that skill tree, but you could still just as easily get levels in stealth, heavy weapons, and diplomacy. If there are no classes, how will level ups work? I'm hoping for a system, regardless of classes or not, where you gain pending exp, and you can put this exp into whatever skill tree you want, but that probably won't happen. Finally will there be a stat bar? Will there be prerequisites for basic stats (strength, intelligence) to level certain skills, or to use certain weapons? If so, how will you level them, and if not, will there be prerequisites for using weapons at all?