Like most real-time strategy games, the game map initially starts with a black fog of war covering the entire map, with an exception to units' line of sight. As the units explore the map, the fog is removed for the duration of the mission, allowing the player to observe activity in those regions even if they do not have any units with line of sight to them. Like "Dune II", the player may construct concrete before placing buildings. In "Dune II", all buildings would deteriorate regardless, but the concrete foundations slowed the process. However, in "Dune 2000", the buildings do not deteriorate over time when built in their entirety on concrete.