Clint Paris created a map for a game using the Unity software. He was able to adjust the terrain by making areas bigger or smaller and changing terrain types like adding grass or rock. The document includes several screenshots showing the progress of the map development, including adding hills, water, character movement limitations, mouse sensitivity settings, and character movement speed. The finished terrain map includes buildings, a volcano, mountain, military base, boats, and character spawn point. Additional images show villages with walls, towers and buildings, an isolated village near a volcano accessible by bridge, a run-down shanty village, and a mining area within a mountain.