Twilight Struggle
"Twilight Struggle" was the highest-ranked game on BoardGameGeek from December 2010 to January 2016. As of August 2018, the board game occupies a fifth spot. Being released in 2005 it is the oldest board game in the overall top 10 ranking.
Dunhuang Go Manual
The Dunhuang Go Manual or Dunhuang Go Classic or simply the Classic of Go () is the earliest surviving manual on the strategic board game of Go (). Dating from the 6th century, it exists as a single manuscript that was discovered in the 'Library Cave' of the Mogao Caves in Dunhuang, China by Aurel Stein in 1907, and which is now in the collection of the British Library in London, England.