Move them apart from each other so that they don't merge into larger rooms
Find rooms that overlap on an axis that don't have rooms between them that a connection would cross through
Make a connection between those rooms roughly in the centre of where they overlap on that axis
Put items and other decoration into the level
The creation of rooms and corridors naturally gives some smaller areas as well as any larger rooms, which works well for the type of level we want to create. but it is important that the rooms take up most of the space of our level, large empty gaps might mean we end up with unconnected rooms if they don't line up with any others. Rooms too spread out will also mean that the corridors become very long, which might work for singleplayer adventures but don't work very well when trying to find and engage in a 1v1 battle.