Outdoor Space Thumbnails
Things that you can do when you're moving through terrain: Find a path across some rocks Cross some water Scramble up some elevation, finding ledges to rest on Mazey ruins (having to go in and out of them to end up at a spot) Build things that go across gaps: quick/logs, slow/bridge Build things that go up/down cliffs: quick/ladders, slow/stairs Descend into a pit/gorge (requires some prep) Reach/create safe spots in dangerous areas (ledge? ruins? make a door/block off a cave?) And probably basic stuff like gather resources, forage for snacks, fight nasties. How much time you spend indoors vs underground vs outside is a big question.