I'm trying to make my first adventure map and part way through I thought of something. I'm building the map in creative mode, so when I finish and people download it, will the map be in creative mode when they play?
You need to install something to turn it off like single player commands
If you do install it, then type in /gamemode 0 and to switch back, type /gamemode 1
There are lots of other ways to but you get a BUNCH of features with SPC