Which game dates back to at least the Roman Empire: Nine Men's Morris, or Icehouse pieces?
Icehouse pieces Icehouse pieces, or Icehouse Pyramids, Treehouse pieces, Treehouse Pyramids and officially Looney Pyramids, are nestable and stackable pyramid-shaped gaming pieces and a game system. The game system was invented by Andrew Looney and John Cooper in 1987, originally for use in the game of Icehouse.
Man-to-man wargame A man-to-man wargame (also known as a skirmish wargame) is a wargame in which units generally represent single individuals or weapons systems, and are rated not only on weaponry but may also be rated on such facets as morale, perception, skill-at-arms, etc. The game is designed so that a knowledge of military tactics, especially at the small unit or squad level, will facilitate successful gameplay. Man-to-man wargames offer an extreme challenge to the designer, as fewer variables or characteristics inherent in the units being simulated are directly quantifiable. Modern commercial board wargaming stayed away from man-to-man subjects for many years, though once the initial attempts were made to address the subject, it has evolved into a popular topic among wargamers.