I explored every bit of the ruined city and just about everything on the eastern half of the map. So I hit level 20 pretty early in the storyline.
If it required Science skill to activate, I stopped it at 50 so I could use the average skill terminals, so I may be pooched there. My next guy is a tech head badguy. I went good karma last time so I'm going bad this time. I still find myself being nice to people in order to get more quests.
