This is a color surface map for Mercury made from two global maps constructed from MESSENGER orbiter images. The maximum surface resolution of 468 m/pixel. Textures are in PNG format.
Downloads (930 MB)
Extract the archive into your SpaceEngine directory. Then, open your solarsys.sc file in /catalogs/planets inside your SpaceEngine folder, and under the entry for Mercury change the DiffMap parameter value to Mercury/Surface_Color, so that the Surface tag reads like the following:
Lommel 1.0 // Lommel-Seeliger lighting model