Global Diplomacy (GD) and Age of Discovery (AoD) are two variants of a play-by-emailwargame, run by E-Mail Games. The games simulate strategic-levelwarfare and diplomacy at a late-19th Century (c.1880) technology level. The smallest units are of corps and squadron size. Whereas Global Diplomacy (and Global Diplomacy 2) attempt to simulate a world war, on Earth during the era of New Imperialism, Age of Discovery uses a randomly created map and world. There are a couple other small differences between the two games.
... management, commonly abbreviated DRM, is an umbrella term for any of several arrangements by which the usage of copyrighted data by someone who has purchased a copy ...