>>41428986Designing a decent map in either isn't really any easier. Sure, implementing a grid-based map is easier than 3D modeling, but that's implementation, not design. You can just as easily end up with shitty boring hallways with no side options in a 2D map as a 3D one if the designer doesn't know what they're doing.
If anything, making a 3D map should be easier, because you can place paths and objects of interest in the distance, allowing a player to go off of the path to investigate, while a 2D map requires such things to have some sort of indication within the player's limited view radius. Similarly, a 3D map also has an advantage when it comes to vertical space, as they can more easily have paths that lead upward or downward without having to worry about how that looks from the fixed camera angle