In brood war, the regular campaign editor is very limited in what it can do. Modern map editors have allowed map makers to create these sophisticated mountains and cliffs that are stacked on top of each other. Aesthetically, it looks cool, but what I'm interested in is how it affects gameplay. I know that in general, units on the high ground have an advantage due to fog of war and because of percent chance hit/miss. Here are two examples of the cliffs I'm talking about:

One that seems to be "inverted". The ramp itself looks like it's going down, but the sides make it look like gameplay-wise it's going up.

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And a regular ramp that's part of a mountain.

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However, I find it difficult to tell which direction the ramps are actually going and on which side of the ramps the player has an advantage. Can someone explain it to me?

3 Answers 3


Strictly judging by the outlined part, the higher grounds have to be on left side, because if it wasn't, you wouldn't be able to see those rocks.

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  • Actually, you wouldn't be able to see the rocks on the other side if that were true. The trick to spotting these actually is looking at the rest of the border between the two areas connected by the ledge. Typically, it's rather easy to see which one is higher in some place. This one actually looks like the lower right corner of the screen is high ground based on the border line between the areas, especially the groove to the right of your circle, which typically appears on high ground only.
    – scenia
    Aug 14, 2017 at 5:31

The wide ramps do look a bit unusual at first glance, but you'll grasp the orientation as you play/watch more games.

High-ground in BW add two tactical complexities

  1. Ground units/buildings on lower elevation do not have vision of the higher elevation.
    • For example, if a ground unit stands on low ground in front of a wide ramp, then everything above the ramp is in fog-of-war. If a (non-cloaked) unit attacks from the fog-of-war, then the attacking unit is revealed briefly, even to low-ground units.
  2. Ranged ground units on lower elevation attacking ground units/buildings on higher elevation have a 46.875% chance of missing.

Source: http://wiki.teamliquid.net/starcraft/Terrain_Features#High_Ground


Those ledges indicate a higher elevation that is non-accessible from ground troops except for the ramp. This is somewhat a good strategy for parking Siege Tanks with the Siege ability upgraded from the Factory Add-on. It also effects the distance used in calculating when any ground unit can stop and fire at the enemy above.

The gameplay is not affected when air units are considered, both because they fly and range on attack is measured differently than when ground units attack.

As for telling what is where, the ledges define the no ground access. Game-wise, there is no affected anything past the width of the ramp. The wider the ramp the more issues you'll have stopping ground units from coming in. The thinner ramps bottleneck units and make siege tanks and other options (e.g. bunkers) a lot better in defending camps and HQ bases.

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