Anyways, here are some isometric graphics, and some code below to get you started if you want to give it a try. If you want the guy to go up and down the map, you'll have to mess with Enter/Entered/Exited etc, whatever you prefer, and modify the players pixel_x and pixel_y.
All credits for the graphics go to Cuddlebear, except the player with the shadow facing the wrong direction. That guy goes to whoever the guy is that pops up when you google "free isometric graphics".
world
map_format = ISOMETRIC_MAP
icon_size = 80
view = 6 // I use a 13x7 map with pixel size 80
turf
tileset
icon = 'isometric_graphics.dmi'
world
low
icon_state="low"
medium
icon_state="medium"
high
icon_state="high"
medium_ramp
icon_state="medium-ramp"
north{dir=NORTH}
south{dir=SOUTH}
east{dir=EAST}
west{dir=WEST}
high_ramp
icon_state="high-ramp"
north{dir=NORTH}
south{dir=SOUTH}
east{dir=EAST}
west{dir=WEST}
steep_ramp
icon_state="steep-ramp"
north{dir=NORTH}
south{dir=SOUTH}
east{dir=EAST}
west{dir=WEST}
medium_corners
icon_state="medium-corners"
north{dir=NORTH}
south{dir=SOUTH}
east{dir=EAST}
west{dir=WEST}
medium_corners2
icon_state="medium-corners2"
north{dir=NORTH}
east{dir=EAST}
west{dir=WEST}
high_corners
icon_state="high-corners"
north{dir=NORTH}
south{dir=SOUTH}
east{dir=EAST}
west{dir=WEST}
high_corners2
icon_state="high-corners2"
north{dir=NORTH}
east{dir=EAST}
west{dir=WEST}
tree
icon_state="tree"
low_bump
icon_state="low-bump"
medium_bump
icon_state="medium-bump"
mob/Login()
..()
icon='isometric_graphics.dmi'
icon_state="player"