[Falkon1313]

Also, solo was always the majority of board wargamers (90% according to statistics from SPI).

Given the size, detail, the depth of the rules, the long playtime, the interest of reading or otherwise learning about the history as you play, etc., it works out well. Pretty much all wargames by the major publishers have listed a 'Solitaire Suitability' rating on the box for decades.