A wargame is a playable simulation. A conflict simulation is another name for wargame, one that leaves out the two unsavory terms “war” and “game”.
Quotes about wargames
[Twilight Struggle] is, in effect, both a secondary source about Cold War history and a primary source about modern reflections on the Cold War experience. Because of this, [this game], and by extension the wargame genre as a whole, holds tremendous promise as an investigative source for use in historical scholarship and pedagogy.