In the game: help the surface Also surface world topside up top wasteland going up
The land above the city, and how to go there.
The surface is the land above the city. It has been poisoned since the Burning, and it is dangerous. You get there from Suburba, near the Outriders' monitoring station. Anyone can go up.
Wait until you know the game. Get proper gear, and go with people who have been up before.
The Outriders run jobs on the surface. Take one at their station with contracts. See help contracts and help outriders.
Before you go, read help combat. If you die, see help splintering.